The manufacture of steel doors is standardized by GOST 31173-2003, which has been in effect since March 1, 2004, and SNiP. These documents apply to steel door blocks equipped with locking devices, which are installed in residential and non-residential buildings. But special-purpose doors with increased requirements in terms of security or resistance to aggressive environments do not fall under their action.

There are a number of requirements for entrance metal doors.

Classification of steel doors

Depending on the location, metal doors are divided into external and internal structures. External metal doors are installed at the entrance to the building, in the vestibule. Internal steel products include entrance doors to housing from the entrance, installed inside buildings.

In terms of design, metal products differ:

• by box type
• the number of paintings;
• number of sealing circuits.

There are no restrictions on the choice of finishes for metal doors, so the exterior design can be done with the following materials:

• paint and varnish;
• film;
• leather;
• woody;
• glass (mirrors);
• decorative metal.

Varieties metal doors by type of finish

The door structure is made with a closed loop (K), a U-shaped box or with an additional (structurally separate) threshold (P). Steel doors can have a single-leaf (L, R) or double-leaf (D) leaf, which opens outwards (H) or inside (Vn) of the room. At admissible opening of both halves or one. According to the number of sealing circuits, the products are divided into single-circuit or multi-circuit.

The design features of metal doors are displayed in the identifier, for example, DSV LPVn 1900-800 MZ. This example is decoded as follows:

• DSV - internal steel door block;
• L - single-field with opening to the left;
• P - with a threshold;
• Vn - opens inward;
• 1900-800 - product dimensions;
• M3 - strength class.

The operational characteristics of the design divide the products into classes. The table shows the values ​​by which the classification is carried out.

Metal steel doors differ in strength class, which has the designation: M1, M2, M3. The strength class is determined by the results of tests that are carried out to determine the resistance to static, dynamic and shock loads.

The device of the input blocks is divided into types of execution according to burglary resistance:

• conventional type, with anti-removable devices;
• reinforced type, when the device is equipped with a perimeter locking mechanism, has reinforced hinges and strength class M2;
• protective, with additional protection requirements and class M1.

Locks installed in metal structures doors, must comply with the recommendations of GOST 5089.

The thickness of steel sheets for ordinary metal doors according to GOST cannot be less than 2 mm. Armored products are made from metal sheets with a thickness of 8 mm. Reinforced and protective type products are designated by the letters "U" and "Z".

door requirements

The design of the product and its installation must comply with GOST and SNiP. Steel door leafs are made of sheets and rectangular profiles. The use of a bent profile is allowed. Also, the sheets can be connected to each other according to the type of a bent box, but GOST recommends connecting the sheets by welding, which is performed in a protective gas environment. The points where the connection is made by welding must be reflected in the documentation. The profile in corner joints is joined by welding or by another method. The strength of joints cannot be lower than welded ones.

The design of a metal door must comply with GOST and SNiP

Insulated metal doors are made of steel sheets with filling between them, for which mineral wool, fiberboard sheets, wooden bars, Styrofoam.

Door frames are made of a bent or rectangular profile, having, respectively, a thickness of at least 1.5 mm and dimensions in a section of 40x50 mm.

The canvas is reinforced inside with profiles located vertically and horizontally. GOST recommends using from two vertical and horizontal profiles. In the location area door hinges and anti-removable mechanisms, additional horizontal profiles are installed, and in the rest it is allowed to place others at an angle between the vertical profiles.

The inner side of the doors is allowed to be made not from a solid steel sheet, but from parts connected by welding along profiles. GOST allows replacing internal metal sheets with fiberboard or other materials with the required strength.

Additional requirements

In order to be able to provide access to locking devices for the purpose of their replacement or repair, with inside canvas mechanically installed "window". The locking device is not recommended to be fixed by welding due to the possibility of damage to the lock parts by high temperature. When installing locks, it is necessary to exclude the possibility of deforming loads on the locks during operation. This is necessary to prevent jamming of the locks.

To soundproof and reduce heat transfer, sealing gaskets are mounted around the entire perimeter of the box. The number of circuits is allowed two or more. Installation is carried out without gaps in the joints of the gaskets, and their fit to the porch must be made tight. On external entrance doors, sealing gaskets are selected according to their resistance to the influence of temperature changes. The depth of the lock bolt in the box socket is 22 mm.

Anti-removable crossbars must be installed in the area of ​​the door hinges. Passive crossbars (pins) are welded or pressed.

Anti-removable bolts fit tightly into the holes on the door frame, preventing the door from being removed from the hinges.

GOST extends its requirements for the installation of metal door blocks up to nine square meters. The dimensions of the canvases are not more than 2200 mm in height and 1200 mm in width.

Mounting Features

Due to the significant weight and increased requirements for burglary resistance, the installation of a metal door has its own subtleties. After dismantling old door it is necessary to prepare an opening so that the gap between the wall and the box does not exceed two centimeters. After placing the door block in the opening, they start leveling, ignoring the deviations of the plane of the doors and walls. To fix the position, wedges are used, which are driven in between the frame and the wall.

Wooden wedges are used to fix the door block in the opening.

After that, they begin to strengthen the structure. A wall is drilled through special holes and a pin is driven into the wall, which must enter the wall by at least 15 cm. When drilling holes, it is necessary to change the slope for each fixation point, which will complicate the work of possible burglars.

If the structure has a double frame, then every 20-30 cm between the wall and the corner of the loot, special metal wedges are driven in, which are selected according to the width of the gap.

The main installation work is completed by sealing the gaps with mounting foam.

Given the complexity of the work, which requires knowledge and special skills, we advise you to turn to professionals, and not do it yourself. Otherwise, even an armored door will not ensure the reliability of your home and the safety of property.

Annex A (mandatory). Terms and definitions Appendix B (informative). Examples of designs of product units and options for drawings of door panels Appendix B (mandatory). Requirements for protective door blocks Appendix D (reference). An example of determining the strength class of a door unit Appendix E (recommended). An example of filling out a door block passport Appendix E (recommended). General requirements for the installation of products Appendix G (informative). Information about the developers of the standard

Interstate standard GOST 31173-2003
"Steel door blocks. Specifications"
(put into effect by the resolution of the Gosstroy of the Russian Federation of June 20, 2003 N 76)

steel doors. Specifications

Introduced for the first time

1 area of ​​use

This standard applies to steel door blocks with installed locking devices (hereinafter referred to as door blocks or products) for buildings and structures for various purposes.

The standard does not apply to door blocks for special purposes in terms of additional requirements for fire safety, explosion and bullet resistance, exposure to aggressive environments, etc., as well as to door blocks of protective cabins according to current regulatory documentation.

The scope of specific types of products is established depending on the operating conditions in accordance with the current building codes and regulations, taking into account the requirements of this standard.

The standard can be applied for certification purposes.

4 Classification and symbol

4.1 Products are classified according to the following criteria:

appointment;

design options;

type of finish;

performance indicators;

mechanical characteristics;

protective properties.

with a closed box;

with U-shaped box;

with a U-shaped box with an additional threshold;

with opening inside the room;

with outward opening;

according to the number of sealing circuits in the porch:

with one circuit;

with two or more circuits.

5.1.5 It is allowed to use butted sheet blanks welded along reinforcing profiles instead of an internal solid steel sheet, while the places of welding points are set in the design documentation.

5.2.9 The nominal diameters of holes for bolted connections and the maximum deviations from them, established depending on the method of formation and type of bolted connection, are taken in accordance with GOST 23118.

5.3 Characteristics

5.3.1 Performance indicators of door units are given in Table 4.

Table 4

Name of indicator	Meaning indicator
Reduced heat transfer resistance of door panels blocks, m2 x °C/W, not less than	0,40
Sound insulation, dB, not less	20
Air permeability at Delta Р_0 = 100 Pa, m3/ (h x m2), no more	27
Reliability, opening-closing cycles, not less than: for interior doors for external door units	200000 500000
Note - The need to apply performance indicators, marked with "*", set in the design and technical documentation based on the purpose of the door blocks.

5.3.2 The performance of door blocks for a specific purpose is recommended to be set in project documentation for construction (reconstruction) and confirm with the results of tests in testing centers accredited for the right to conduct them.

5.3.3 Door blocks, depending on the strength class, must withstand the action of static loads in accordance with the requirements of Table 5.

Table 5

Class strength	Values ​​of static loads, not less than, N
	Perpendicular plane of the canvas free zone corner	In the plane of the canvas	Perpendicular plane of the canvas loop zone
M1	4500	7000	4000
M2	3000	5000	3000
M3	2000	3000	2000

5.4 Requirements for materials and components (including gaskets)

5.4.1 Materials and components used for the manufacture of door blocksmust comply with the requirements of standards, specifications, technical certificates approved in the prescribed manner.

5.4.2 Materials and components used for the manufacture of door blocks must be resistant to climatic influences.

5.4.3 The surfaces of steel elements of boxes and sheets should not have cracks, mechanical damage, pits, distortions, rust. On the front surfaces of steel elements, slight local depressions, risks, waviness up to 0.5 mm deep are allowed, which do not reduce the functional properties and quality of products.

5.4.4 Steel parts of structures should be made of steel grades that ensure the strength characteristics of structural elements, welded, bolted and other joints, depending on the nature and conditions of their work.

Steel elements are recommended to be made from steel grade not lower than St3kp2 according to GOST 380, rolled section according to GOST 1050 or high-alloy steel according to GOST 5632.

5.4.5 Sealing gaskets should be made of weatherproof elastic polymer materials according to GOST 30778.

The fit of the seals must be tight, preventing the penetration of water. Sealing gaskets must be installed continuously around the entire perimeter of the porch.

5.5 Requirements for hinges, locks and other locking devices

5.5.1 In the manufacture of products, locking and auxiliary devices and hinges are used, specially designed for use in metal door blocks. Examples of designs of hinges and locks are given in Appendix B.

The type, number, location and method of fastening of locking devices and hinges are set in the working documentation based on the size and weight of the opening elements of the product, as well as the operating conditions of the door blocks. Cloths of door blocks weighing more than 200 kg, as well as products used in public buildings (schools, hospitals, etc.), are recommended to be hung on three hinges. The recommended location of the middle hinge is 150-200 mm below the top one.

For improvement protective properties For door blocks, it is recommended to use multi-bolt locks with locking along the perimeter of the door block or locks with rods with additional locking in the upper and lower horizontal profiles of the frame.

To avoid clogging of the hole for the lower vertical bolt included in the bottom profile of the box, it is recommended to use deviators.

5.5.4 Depending on the purpose of the door blocks in the project documentation, as well as when placing orders, it is necessary to provide for the complete set of products with latches, door closers (closers), opening angle limiters (stops), eyes, chains, etc.

5.5.5 Locking devices must ensure reliable locking of the opening elements of products. Opening and closing should be easy, smooth, without jamming.

5.5.6 The design of the locking devices and hinges must ensure a tight and uniform crimping of the gaskets along the entire contour of the seal in the porches.

Non-facial surfaces of products may have depressions, risks, waviness and other surface defects that do not reduce the functional properties and quality of products.

Hole edges must be free of burrs and burrs.

5.6.6 Color (tone) and degree of gloss (gloss, dullness) of the finishing coating must correspond to standard samples approved by the head of the manufacturer and agreed with the customer.

5.6.7 Paint and varnish coatings must have adhesion strength (adhesion) with the surface being trimmed not lower than 2 points according to the method of lattice cuts in accordance with GOST 15140.

5.6.8 The thickness of paint coatings, as well as the procedure for monitoring this indicator, is recommended to be set in technical documentation for the manufacture of products.

5.6.9 Protective and protective and decorative coatings must be resistant to temperature and humidity operational impacts.

5.6.11 The front surfaces of wood parts used for finishing door panels should not have processing defects and defects in wood, with the exception of curls, tortuosity, eyes, fiber inclination up to 5% according to GOST 2140.

5.6.12 The design of fastening of facing parts made of wood and board materials to steel elements of door blocks should provide the possibility of compensating their temperature and humidity deformations.

The shape and dimensions of the sections of the facing profiles adjacent to the steel surfaces of the external products must provide a minimum area of ​​​​contact with these surfaces, as well as the possibility of ventilating the cavity between them, otherwise the contacting surfaces must be protected by paintwork or other protective materials.

5.6.13 Adhesive materials used when lining door panels with artificial or natural leather, as well as decorative films, must provide sufficient adhesion strength, while non-glued areas, folds, waviness and other appearance defects are not allowed.

5.7 Completeness and marking

5.7.1 The complete set of products upon their delivery to the consumer must comply with the requirements established in the contract (order).

Door units should be delivered assembled with locking devices installed. By agreement with the consumer, the set of products may also include closers (closing regulators), opening angle limiters and other door devices.

The set of keys must be handed over to the customer in a sealed form against the signature of the customer (buyer).

5.7.2 The scope of delivery should include a quality document (passport) and instructions for the operation of products, including recommendations for installation.

5.7.3 Each product is marked with a waterproof marker or label indicating the name of the manufacturer, the brand of the product, the date of its manufacture and (or) the order number, a sign (stamp) confirming the acceptance of the product by technical control.

5.7.4 The door devices included in the product must be marked in accordance with the ND for this product.

6 Acceptance rules

6.1 Products must be accepted by the manufacturer's technical control service for compliance with the requirements of this standard, as well as the conditions specified in the contract for the manufacture and supply of products. Confirmation of acceptance of products by the technical control service of the manufacturer is the execution of documents on the acceptance (quality) of products.

Products are accepted in batches or individually. When accepting products at the manufacturing plant, a lot is taken as the number of products manufactured within one shift and issued with one quality document. The number of products of the same design, manufactured according to one order, can be taken as the batch size.

6.2 The requirements for product quality established in this standard confirm:

input control of materials and components;

operational production control;

acceptance control of finished products;

control acceptance tests of a batch of products conducted by the quality control service of the manufacturer;

periodic and certification tests of products in independent testing centers;

qualification tests.

6.3 The procedure for conducting incoming control and operational production control at workplaces is established in the technological documentation.

If the manufacturer completes the door blocks with components of its own manufacture, then they must be accepted and tested in accordance with the requirements of the regulatory documentation for these products.

6.4 Acceptance quality control finished products carried out by the method of continuous control. The list of controlled indicators is given in Table 8.

Finished products that have passed acceptance control are marked. Products that have not passed the acceptance control for at least one indicator are rejected.

Table 8

Name indicator	Number item requirements	View tests			Periodicity (at least)
		I	II	III
Appearance (including color)	5.3.8	+	+	-	For test type I - continuous control, for type II - 1 time per shift
Dimensional deviation gaps under the surfacing	5.2.3	+	+	-	Same
Fit density gaskets	5.1.8	+	+	-	"
The work of loops and locking devices	5.5.5, 5.5.6	+	+	-	"
Marking	5.7.3	+	+	-	"
Deviation controlled nominal sizes and straightness edges	5.2.2-5.2.8	-	+	-	"
Weld quality connections	5.3.9	-	+	-	"
	5.3.10		+	+	For test type II - 1 time per shift, III - 1 time in two years
Resistance	5.3.3	-	-	+	Once every two years
Resistance	5.3.4	-	-	+	Same
impact resistance soft inelastic body	5.3.5	-	-	+	"
impact resistance metal ball	5.3.7	-	-	+	Once every two years
Reliability	5.3.1	-	-	+	Same
Correspondence ergonomic requirements	5.3.6	-	-	+	"
Reduced resistance heat transfer	5.3.1	-	-	+	Once every five years
Breathability	5.3.1	-	-	+	Same
Soundproofing	5.3.1	-	-	+	"
* Test type I - acceptance tests during acceptance control; test type II - acceptance tests carried out by the service the quality of the manufacturer; test type III - periodic tests carried out in independent testing centers. ** Controlled nominal dimensions for test type II set in the technological documentation.

6.5 Each batch of products undergoes control acceptance tests conducted by the quality service of the manufacturer. The list of controlled indicators and the frequency of control are given in table 8.

To conduct tests, samples of door blocks are taken from a batch of products by random selection in the amount of 3% of the batch volume, but not less than 3 pcs. If there are less than 3 products in a batch, each product is subjected to control.

In the event of a negative test result for at least one indicator on at least one sample, a re-check of the quality of products is carried out on a double number of samples for the indicator that had a negative test result.

If a discrepancy between the indicator and the established requirements is detected again, at least on one sample, the control and subsequent batches of products are subjected to continuous control (sorting). At a positive result total control return to established order acceptance tests.

6.6 Periodic tests according to the performance indicators specified in 5.3.1-5.3.7 are carried out when they are put into production or when changes are made to the design of products or their manufacturing technology, but at least once in the period specified in Table 8, and also when product certification. In justified cases, it is allowed to combine periodic and certification tests.

Qualification tests of products are carried out for all indicators when putting products into production.

Tests are carried out in test centers accredited for the right to conduct them.

Tests to determine the reduced resistance to heat transfer, air permeability, sound insulation are subjected to structures designed to withstand these loads according to their field of application.

6.7 The consumer has the right to conduct a quality control check of products, while observing the sampling procedure and test methods specified in this standard.

When products are accepted by the consumer, a batch is considered to be the number of products shipped for a specific order, but not more than 90 pieces, drawn up with one quality document.

Table 9

Volume party, PC.	Sample size, pcs.	acceptance number
		Minor defects	Critical and significant defects
1 to 12	Solid control	3	0
13 - 25	4	3	0
26 - 50	8	4	0
St. 50	12	5	0
Note - Significant and critical defects include: defects, leading to loss of operational characteristics, unrecoverable without replacement of a part of the product (breakage of a steel profile, etc.), excess limit deviations of dimensions by more than 1.5 times established in the ND, disassembly of products. Minor defects include removable defects: minor surface damage, unadjusted door fittings and hinges, exceeding the limit deviations of dimensions by less than 1.5 times established in the ND.

By agreement of the parties, acceptance of products by the consumer can be carried out at the manufacturer's warehouse, at the consumer's warehouse or in another place specified in the supply contract.

GOST 26433.0 7.2.4 Appearance, quality of welds, color and quality of finishing of products are evaluated visually by comparison with standard samples approved in the prescribed manner. Surface defects visible to the naked eye from a distance of 1.5 m at natural light not less than 300 lux are not allowed.

7.2.5 Adhesion (strength of adhesion of paint and varnish coatings to the metal surface) is determined by the method of lattice cuts according to GOST 15140.

7.2.6 The tightness and correct installation of sealing gaskets, door fittings, fasteners and other parts, color and absence of cracks in welded joints, marking and packaging are checked visually.

To determine the tightness of sealing gaskets, compare the dimensions of the gaps in the porches and the degree of compression of the gaskets, which should be at least 1/5 of the height of the uncompressed gasket. Measurements are made with a caliper or a ruler according to GOST 427.

The tightness of sealing gaskets with closed canvases can be determined by the presence of a continuous trace left by a coloring matter (for example, colored chalk), previously applied to the surface of the gaskets and easily removed after inspection.

mm and mass kg, from a height of fall according to 5.3.5 into the central zone of the sample.

Note - At the end of the test, the door blocks must remain operational, while the bolt of the lock and the latch must freely enter their mating parts.

Before and after testing the door units for failure-free operation, it is recommended to check the tightness of the seals in accordance with 7.2.6.

When testing door blocks for resistance to a static load acting perpendicular to the plane of the door leaf in the free corner zone, it is recommended to use the graph of the dependence of the free corner deflection on the applied load, given in Appendix D, to determine the strength class.

8 Packaging, transport and storage

8.1 Packaging of products must ensure their safety during storage, handling and transportation.

8.2 Devices or parts of devices that are not installed on the products must be packed in polyethylene film in accordance with GOST 10354 or in other packaging material that ensures their safety, tightly tied and delivered complete with products.

8.3 Opening webs of products before packaging and transportation must be closed on all locking devices.

8.4 Products are transported by all means of transport in accordance with the rules for the carriage of goods in force for this type of transport.

8.5 During storage and transportation of products, they must be protected from mechanical damage and exposure to precipitation.

8.6 When storing and transporting products, it is recommended to install gaskets made of elastic materials between products.

8.7 Products are stored in a vertical or horizontal position on wooden linings, pallets or in special containers in covered areas.

8.8 Warranty period of storage of products - 1 year from the date of shipment of products by the manufacturer.

9 Manufacturer's warranties

9.1 The manufacturer guarantees the compliance of products with the requirements of this standard, provided that the consumer complies with the rules for transportation, storage, installation, operation, as well as the scope established in the regulatory and project documentation.

If you are a user of the online version of the GARANT system, you can open this document right now or request hotline in system.

Put into effect by order of the Federal Agency for Technical Regulation and Metrology dated November 22, 2016 N 1739-st

Interstate standard GOST 31173-2016

"STEEL DOOR BLOCKS. SPECIFICATIONS"

steel doors. Specifications

Instead of GOST 31173-2003

Foreword

The goals, basic principles and basic procedure for carrying out work on interstate standardization are established by GOST 1.0-2015 "Interstate standardization system. Basic provisions" and GOST 1.2-2015 "Interstate standardization system. Interstate standards, rules and recommendations for interstate standardization. Rules for the development, adoption, updates and cancellations

About the standard

1 Developed by a private institution "Certification Center for Window and Door Equipment", Limited Liability Company "DorKhan 21st Century", "CISA" (Italy)

2 Introduced by the Technical Committee for Standardization TC 465 "Construction"

3 Adopted by the Interstate Council for Standardization, Metrology and Certification (Minutes of October 25, 2016 N 92-P)

4 By order of the Federal Agency for Technical Regulation and Metrology of November 22, 2016 N 1739-st, the interstate standard GOST 31173-2016 was put into effect as a national standard Russian Federation from July 1, 2017

5 This standard complies with the technical requirements and test methods of the following European standards:

EN 14351-1:2006 + A1:2010 "Windows and doors - Product standard, performance characteristics - Part 1: Windows and external ground door openings without fire resistance and / or smoke transmission characteristics" ("Windows and doors - Product standard, performance characteristics - Part 1: Windows and external pedestrian doorsets without resistance to fire and/or smoke leakage characteristics", NEQ);

EN 1191:2012 "Windows and doors - Resistance to repeated opening and closing - Test method", NEQ);

EN 1192:1999 "Doors - Classification of strength requirements", NEQ

6 Instead of GOST 31173-2003

1 area of ​​use

This standard applies to door steel blocks with installed locking devices (hereinafter referred to as door blocks) intended for installation in outdoor and internal walls buildings and structures for various purposes. The requirements of this standard can be applied to the entrance door blocks of buildings and apartments equipped with burglar alarm.

The scope of specific types of products is established depending on the operating conditions in accordance with the building codes and regulations in force on the territory of the state party to the agreement that adopted this standard, taking into account the requirements of this standard.

This standard does not apply to door blocks for special purposes in terms of additional requirements for fire safety, explosion and bullet resistance, exposure to aggressive environments, etc., as well as to door blocks of protective cabins in accordance with current regulatory documents.

This International Standard may be applied for certification purposes.

2 Normative references

This standard provides normative references to the following interstate standards:

GOST 2.001-2013 Unified system for design documentation. General provisions

GOST 3.1001-2011 Unified system of technological documentation. General provisions

GOST 9.032-74 Unified system of protection against corrosion and aging. Paint coatings. Groups, technical requirements and designations

GOST 9.301-86 Unified system of protection against corrosion and aging. Metallic and non-metallic inorganic coatings. General requirements

GOST 9.303-84 Unified system of protection against corrosion and aging. Metallic and non-metallic inorganic coatings. General selection requirements

GOST 9.308-85 Unified system of protection against corrosion and aging. Metallic and non-metallic inorganic coatings. Accelerated Corrosion Test Methods

GOST 9.401-91 Unified system of protection against corrosion and aging. Paint coatings. General requirements and accelerated test methods for resistance to climatic factors

GOST 9.402-2004 Unified system of protection against corrosion and aging. Paint coatings. Preparation of metal surfaces for painting

GOST 99-96 Rotary cut veneer. Specifications

GOST 166-89 (ISO 3599-76) Calipers. Specifications

GOST 380-2005 Carbon steel of ordinary quality. Stamps

GOST 427-75 Measuring metal rulers. Specifications

GOST 538-2014 Lock and hardware products. General specifications

GOST 1050-88 Rolled bars, calibrated, with special surface finish from quality carbon structural steel. General specifications

GOST 2140-81 Visible defects of wood. Classification, terms and definitions. Measurement methods

GOST 2977-82 Sliced ​​veneer. Specifications

GOST 4598-86 Wood fiber boards. Specifications

GOST 5088-2005 Hinges for window and door units. Specifications

GOST 5089-2011 Locks, latches, cylinder mechanisms. Specifications

GOST 5264-80 Manual arc welding. Connections are welded. Main types, structural elements and dimensions

GOST 5632-2014 Alloyed stainless steels and alloys corrosion-resistant, heat-resistant and heat-resistant. Stamps

GOST 7016-2013 Products made of wood and wood materials. Surface Roughness Options

GOST 7502-98 Metal measuring tapes. Specifications

GOST 8026-92 Calibration rulers. Specifications

GOST 8242-88 Profile parts made of wood and wood materials for construction. Specifications

GOST 9416-83 Building levels. Specifications

GOST 10354-82 Polyethylene film. Specifications

GOST 15150-69 Machinery, instruments and others technical products. Versions for different climatic regions. Categories, conditions of operation, storage and transportation in terms of the impact of environmental climatic factors

GOST 19091-2012 Locks, latches, cylinder mechanisms. Test Methods

GOST 23118-2012 Steel building structures. General specifications

GOST 23166-99 Window blocks. General specifications

GOST 24866-2014 Glued double-glazed windows. Specifications

GOST 26433.0-85 System for ensuring the accuracy of geometric parameters in construction. Rules for performing measurements. General provisions

GOST 26433.1-89 System for ensuring the accuracy of geometric parameters in construction. Rules for performing measurements. Prefabricated elements

GOST 26602.1-99 Window and door blocks. Methods for determining the resistance to heat transfer

GOST 26602.2-99 Window and door blocks. Methods for determining air and water permeability

GOST 26602.3-2016 Window and door blocks. Method for determining sound insulation

GOST 26602.5-2001 Window and door blocks. Methods for determining the resistance to wind load

GOST 30698-2014 Tempered glass. Specifications

GOST 30777-2012 Turning, tilting, tilt-and-turn, sliding devices for window and door balcony blocks. Specifications

GOST 30778-2001 Gaskets sealing from elastomeric materials for window and door blocks. Specifications

GOST 30826-2014 Laminated glass. Specifications

GOST 30970-2014 Door blocks made of PVC profiles. General specifications

GOST 30971-2012 Mounting seams of junctions to wall openings. General specifications

GOST 30972-2002 Glued wooden blanks and parts for window and door blocks. Specifications

GOST 31149-2014 (ISO 2409:2013) Paint and varnish materials. Determination of adhesion by the lattice notch method

GOST 31471-2011 Emergency door opening devices for evacuation and emergency exits. Specifications

Note - When using this standard, it is advisable to check the validity of reference standards in the information system common use- on the official website of the Federal Agency for Technical Regulation and Metrology on the Internet or according to the annual information index "National Standards", which was published as of January 1 of the current year, and according to the issues of the monthly information index "National Standards" for this year. If the reference standard is replaced (modified), then when using this standard, you should be guided by the replacing (modified) standard. If the referenced standard is canceled without replacement, the provision in which the reference to it is given applies to the extent that this reference is not affected.

3 Terms and definitions

In this standard, the following terms are used with their respective definitions:

3.1 door breaking: Actions aimed at breaking the integrity of the door or its structural elements in order to gain partial or full access to the room protected by the door.

3.2 burglary-resistant door: A door that is in a closed (locked) state and is an obstacle to unauthorized entry into the building (room) using physical force or using a certain tool.

3.3 inner sheet: Door leaf sheet located on the inside of the door block, on the side of the guarded or protected premises or object.

3.4 internal door block (including the entrance from the staircase): Door block designed to separate the interior of buildings and pass from one room to another.

3.5 door frame (frame): Assembly unit of the door block, designed for hanging the leaf (cloths), rigidly fixed to the slopes of the doorway.

3.6 door leaf: Assembly unit of the door unit connected to the frame by means of movable links (hinges).

3.7 door block: A structure that includes a box (frame), a door leaf with locking devices.

Note - The door block may include a number of additional elements [door closing device (closer), opening angle limiter, peephole, etc.].

3.8 right (left) opening door block: A door block with hinges located on the right (left) side when viewed from the opening side of the door leaf (Figure 1).

Figure 1 - Definition of the door block in the direction of opening the canvases

3.9 doorway: An opening in the wall intended for mounting a door unit.

3.10 door doorways and consisting of a door block, fixing the door block to the opening, assembly seams, a system of seals and cladding, and providing, when the door leaf is closed, protection from climatic, noise and other influences, as well as from unauthorized passage.

3.11 double leaf door unit door frame.

Note - In a double-leaf door unit, the right or left opening determined by the location of the door leaf, which opens first (Figure 1).

The main leaf of a double-leaf door leaf is used constantly, the second - if necessary.

3.12 locking devices: Devices designed to fix and lock door panels in the closed position (locks, latches, etc.).

3.13 hatch: A hole closed by a lid mounted on mechanical links on the inside of the door leaf at the place where the lock is attached, providing access to the lock if it needs to be repaired.

3.14 mounting elements: Metal mounting plates, usually welded to the profiles of the box (frame), providing fastening of the door block in the wall opening.

3.15 surfacing: A protrusion of the profile of the door leaf (frame), covering the gap in the porch and designed to press the gaskets.

3.16 external door unit (including vestibule): A door unit separating the internal climate of the premises from the external one and serving mainly for entry (exit).

3.17 outer leaf: A leaf of the door leaf located on the outer side of the door block (from the side of the intended attack).

3.18 leaf insert: A non-opening door leaf installed above or next to the opening leaf [see figure 1c)].

3.19 porch: The junction (connection node) of the door leaf to the frame profiles.

3.20 anti-removable passive crossbars (pins): Reinforcing crossbars connecting the closed door leaf with the frame, installed on the vertical profile of the leaf from the hinge side (or on the vertical profile of the frame from the hinge side) and providing additional resistance to breaking of the door block.

3.21 strength of the door block: The ability of the structure to perceive the impact of external forces without destruction.

3.22 profile: profile detail of the box or trim (frame) of the door leaf.

3.23 reinforcing profile: A profile installed inside the door leaf to provide the necessary rigidity and strength of the door block.

4 Classification and conventions

4.1 Door blocks are classified according to the following criteria:

Purpose (at the place of installation);

Structural execution;

operational characteristics;

Mechanical strength;

Protective functions.

4.1.1 By purpose, door blocks are divided into groups:

A - external entrances to buildings and structures;

B - entrance to apartments with staircases;

B - internal, separating heated rooms inside buildings, including public and industrial buildings (offices, offices, hotel rooms), as well as on evacuation routes;

B1 - internal door blocks of auxiliary premises (attics, basements, technical floors, vestibules);

G - external entrances to buildings and entrances to apartments with enhanced protective functions.

Notes

1 Classification by purpose allows the consumer to select a door block within the group depending on the expected operating conditions, specific design requirements and consumer properties. For example, entrance door blocks to buildings can be used as entrances to an apartment.

2 Door units with enhanced security functions can be used as entrances to an apartment or auxiliary premises.

3 It is not allowed to use door blocks of strength class M1 and below as entrances to buildings and apartments.

4.1.2 By design, door blocks are classified:

Box design:

With closed box

With U-shaped box,

With a U-shaped box with an additional threshold;

According to the design of the door leaf:

Consisting of at least two sheets of steel (outer and inner) joined by welding,

Combined, consisting of one outer steel sheet and an inner one made of other materials (chipboard, plywood, polymer boards, etc.),

"Sandwich" type, consisting of double-rolled sheets of rolled steel and a layer of insulation between them;

By the number of canvases (including non-opening ones), direction and type of opening:

Single floor (left and right opening),

Double-field (including with canvases of different widths);

By the method of opening the canvas:

With non-opening canvases (inserts),

With opening inside the room,

Outward opening;

According to the number of sealing circuits in the porch:

With one circuit

With two or more circuits.

4.1.3 According to performance characteristics (reduced resistance to heat transfer, air and water permeability, sound insulation), door blocks of groups A, B, D are divided into classes 1, 2, 3.

The values ​​of operational characteristics of door blocks of the specified classes are given in Table 1.

Table 1 - Classes of door blocks according to performance

Name of indicator	Value for class
Reduced resistance to heat transfer, m 2 ° C / W, not less than
Air permeability (volume) at ΔР = 100 Pa, m 3 / (h m 2)			St. 17 to 27
Water tightness limit*, Pa, not less than
Sound insulation (air noise reduction), dB
* For door blocks of groups A and G (entrance door blocks to buildings from the street), it is allowed to determine the water permeability in accordance with GOST 26602.2. Notes 1 Door blocks with a reduced heat transfer resistance of less than 0.4 m 2 ·°С / W, a volumetric air permeability of more than 27 m 3 / (h m 2), sound insulation of less than 20 dB are not subject to classification according to the indicated indicators. 2 The given resistance to heat transfer for doors of groups A and B is for reference. If necessary, this indicator is confirmed by calculations or laboratory tests. 3 For door units of groups A and D, resistance to wind loads is determined according to the regulatory document * (1) in force in the territory of the state party to the agreement that has adopted this standard. 4 Door blocks of group B, if used as entrances to apartments, should be classified according to performance in accordance with 4.1.3.

4.1.4 Resistance to heat transfer, air permeability and sound insulation for doors of groups A and D, installed in the outer walls of heated buildings, must comply with the requirements of the regulatory document * (2) in force in the territory of the state party to the agreement that has adopted this standard.

4.1.5 According to mechanical strength, door blocks are divided into the following classes: M1, M2, M3, M4, M5.

The mechanical strength classes of door blocks are characterized by the values ​​of the applied static loads given in table 2.

Table 2 - Classes of door blocks for mechanical strength

Load value for a door unit of strength class
1 Static load applied in the plane of the door leaf, N, not less than
2 Static load applied in the area of ​​the free corner of the door leaf perpendicular to its plane, N, not less than
3 Static load applied in the area of ​​the hinges perpendicular to the plane of the door leaf, N, not less than
4 Static load applied in the area of ​​the lock and additional locking devices perpendicular to the plane of the door linen, N, not less than
Notes 1 The strength class of the door block is set according to the worst result of all types of tests (class M5 is the highest). 2 Tests in terms of indicators 2, 3, 4 are carried out on door blocks that open inward, in terms of indicator 1 - in both directions. 3 An example of determining the strength class for a static load acting perpendicular to the plane of the door leaf in the free corner zone is given in Appendix A.

4.1.6 Depending on the presence of protective functions, door blocks are divided into:

On standard door blocks;

Door blocks with reinforced protective functions.

For door units with enhanced security features, additional requirements for burglary resistance may be imposed.

Note - The symbol for door blocks with enhanced protective functions is supplemented with the index "UZ".

Door blocks of groups A, B, C may include separate options for the protective functions of doors of group D.

4.2 For door blocks, the following designations are accepted:

By appointment:

DSN - outer steel door block (group A),

DSVh - steel door block entrance from the staircase (group B),

DSV - internal steel door block (group B),

DSVv - internal steel door block for auxiliary premises (group B1),

DSUZ - a steel door block with enhanced protective functions (G group);

By design:

Dp - two-field,

Op - single-field,

Prg - with a threshold,

Brg - no threshold,

L - left opening,

Pr - right opening,

Vn - opening inside the room,

H - opening outward,

P2ls - with a canvas of two steel sheets,

Pcomb - combined,

RSP - with a "sandwich" door leaf,

Oh - normal execution,

UZ - with enhanced protective functions (burglary resistant).

4.3 The structure of the symbol for door blocks is given in 4.4. In the symbol of the door block, in addition to those specified in 4.2, it is allowed to include dimensions and additional information on performance and mechanical strength classes (see tables 1 and 2).

Note - Dimensions of the door block - external dimensions along the perimeter of the box (frame) without taking into account the casing and additional elements.

4.4 The structure of the symbol of the door unit:

An example of a symbol for an outdoor steel door block, group A, single-leaf, right-hand opening, with a threshold, outward opening, with a door leaf made of two steel sheets, strength class M3, standard version:

DSN, A, Op, Pr, Prg, N, P2ls, M3, O - GOST 31173-2016

Note - For export-import deliveries, as well as in accordance with the order, it is allowed to use a different structure of the symbol. The given structure of the symbol is adopted in accordance with GOST 23166, GOST 24866, GOST 30970, etc.

4.5 When placing an order for manufacturing (delivery) and a passport, it is recommended to indicate: design option, including a description of the filling of the door leaf; the scheme of opening the canvas and the design of the door block; type and brand of door devices and class of locks; type of finish, box width and other requirements as agreed between the manufacturer and the customer.

5 Technical requirements

5.1 Design requirements

5.1.1 Products must comply with the requirements of this standard, standard sample and be manufactured according to the design and technological documentation of the manufacturer.

Design documentation must comply with the requirements of GOST 2.001, technological documentation - with the requirements of GOST 3.1001.

5.1.2 The design of door panels is taken according to 4.1.2.

Note - Door leafs of the "sandwich" type are recommended for use in door blocks without presenting requirements for burglary resistance.

Examples of door block designs and options for filling door panels are given in Appendix B.

The thickness of the outer sheet of the door leaf is set depending on the functional purpose of the door block, the strength class according to table 2 and is confirmed by the test results. The recommended sheet thickness for door blocks of groups A, B - not less than 1.5 mm, group C - not less than 0.5 mm, for group G - not less than 1.8 mm. The thickness of the sandwich door leaf must be at least 0.45 mm.

5.1.4 It is recommended to use at least two vertical and horizontal reinforcing profiles (multipliers) in door leaf structures. Reinforcing profiles are allowed to be placed at an angle between the vertical ones (inclined profiles). Horizontal reinforcing profiles are recommended to be placed in the loop zone or in the zone of anti-removable devices. It is recommended to use L-shaped amplifiers in the loop and lock zones in the designs of "sandwich" type sheets.

5.1.5 In the construction of door panels, it is allowed to use joined sheet blanks welded along reinforcing profiles instead of an internal solid steel sheet. The places of welding points are set in the design documentation.

As an inner sheet, it is allowed to use solid fiber boards in accordance with GOST 4598 or other solid sheet materials that provide sufficient strength.

5.1.6 For the repair of locks and latches at the place of their installation, it is recommended to provide a hatch in the inner sheet, which is fixed on mechanical links.

5.1.7 Locking devices (locks, latches, additional bolts) are recommended to be fixed on screws through special pads and clamping brackets with threaded threads. The fastening of the locking devices must be strong, reliable, excluding their spontaneous displacement during operation and ensuring the requirements for maintainability.

5.1.8 In the structures of external entrances to buildings and internal entrances to the apartment door blocks, in order to increase sound insulation and resistance to heat transfer, it is recommended to install at least two contours of sealing gaskets that provide gaps between the door frame and the leaf.

Sealing gaskets must comply with GOST 30778 and be installed around the entire perimeter of the porch. Sealing gaskets for external door units must be resistant to climatic and atmospheric influences and tested for durability in testing centers accredited to carry out such tests.

5.1.9 The total area of ​​the door block should not exceed 9 m 2, while the height of the opening door panels is recommended not more than 2200 mm, the width - not more than 1200 mm for a single-leaf door and not more than 1800 mm for a double-leaf door.

It is allowed to use non-opening horizontal and vertical canvas-inserts.

In the manufacture of door blocks with canvases with an area, weight and dimensions exceeding the specified values, their quality must be confirmed by the results of laboratory tests or additional strength calculations in accordance with the building codes and rules in force on the territory of the state party to the agreement that adopted this standard.

Note - The largest dimensions of the leafs of door blocks of specific types, depending on the mass of the door leaf, the section modulus of the profiles of the frame of the door leaf, the rigidity of the section of the middle part of the leaf (including the outer and inner lining, filling, reinforcing profiles), the location and types of hinges and locking devices should be given in the design documentation of the manufacturer.

In the construction of door frames, the use of vertical posts (sidewalls) and upper lintels (transoms) increased in width is allowed. Sidewalls and transoms can be made both integral with the door frame, and in the form of separate assembly units connected to the door frame during the installation of the door block in the wall opening.

5.1.10 The location and dimensions of the holes for installing locks and other locking devices are set in the design documentation, taking into account the requirements of GOST 5089.

5.1.11 It is recommended to protect the places of holes intended for the bolt entry with special metal or other equal-strength boxes. The boxes are connected to the profile of the box (frame) so that they do not interfere with the normal movement of the deadbolt bolts. It is allowed to make holes for the bolt entry in the door frame, while the dimensions of the hole should be 2 - 3 mm larger than the corresponding dimensions of the bolt section.

Note - Instead of separate holes for the entry of the deadbolt, it is allowed to use a single crossbar groove, while the design of the groove should not reduce the strength of the hinge post of the door frame. In the groove there may be devices that provide the ability to adjust the location of the door leaf relative to the door frame.

5.1.12 In the design of door blocks on the hinge side, it is recommended to provide anti-removable passive crossbars (pins). The pins must be firmly installed in the frame of the door leaf or in the frame by welding, pressing or riveting. It is allowed to use other types of fastening of anti-removable pins that do not reduce their strength properties. The size, number and location of the anti-detachable pins are set in the working documentation, while for the greatest protection it is recommended to install the anti-detachable pins in the loop area. Instead of pins, it is allowed to use a single anti-burglary labyrinth, in which the protrusion of the end of the door leaf enters the groove of the hinge post of the door frame along the entire vertical of the door block.

5.1.13 Installation of a door unit in a wall opening is recommended to be carried out using special fastening elements (for example, mounting "lugs"), their number and location are indicated in the design documentation. The fastening elements used must provide the necessary fastening strength and safety during door operation.

5.1.14 It is recommended to use environmentally friendly heat and soundproofing materials: mineral wool (including basalt) slabs or other materials according to regulatory documents for their manufacture. Filling should fit tightly, without voids, while maintaining density during the life of the door block.

Note - The density of mineral wool and basalt slabs must be at least 110 kg / m 2.

5.1.15 Polymeric and synthetic materials used for filling and finishing door panels must have conclusions on sanitary and fire safety provided for by applicable law and executed in the prescribed manner. Paints used for finishing should not contain lead.

5.1.16 Door blocks must be safe in operation. Safety conditions for the use of door blocks various designs set in the project documentation.

Products must be designed for operational loads in accordance with the building codes and regulations in force in the territory of the state party to the agreement that adopted this standard. When designing and manufacturing products, calculation programs or calculation methods for determining the strength characteristics of products should be used.

5.1.17 To ensure the normal functioning of the external entrance door blocks of groups A and D to exclude the effects of temperature fluctuations, it is recommended to provide a vestibule in front of the external entrance door.

5.1.18 To ensure barrier-free passage for people with disabilities, group A door units should be equipped with special door closing devices (closers) with a delayed closing system or automatic action with a manual control panel that meet the requirements of regulatory documents * (3) in force on the territory of the state - party to an agreement that has adopted this standard.

5.1.19 If there is a threshold in the design of the door block, its recommended height should be no more than 20 mm.

5.1.20 Door blocks installed on escape routes can be single- and double-leaf, hinged with mandatory opening in the course of evacuation.

For unhindered exit of buildings and premises, door blocks must be equipped with emergency door opening devices "Anti-panic" in accordance with GOST 31471. It is not recommended to complete door blocks for escape routes with thresholds.

5.2 Dimensions and tolerances

5.2.1 The nominal overall dimensions of the door blocks are set in the design and technical documentation (order, supply contract) for the manufacture of products. The nominal dimensions of the details of product assemblies, sections of profiles and gaps, the dimensions of the location of locking devices, hinges and holes are set in the design documentation for their manufacture.

5.2.2 Limit deviations of the nominal overall dimensions of the door blocks should not exceed ±3.0 mm.

5.2.3 Limit deviations of the nominal dimensions of door blocks, sections of profiles and gaps, dimensions of the location of locking devices, hinges and holes should not exceed the values ​​given in Table 3.

The difference in the lengths of the diagonals of rectangular door panels with an area of ​​​​1.5 m 2 or less should not exceed 2.0 mm, with an area of ​​\u200b\u200bover 1.5 m 2 - 3.0 mm.

Table 3 - Limit deviations of nominal dimensions

In millimeters
Canvas dimensions	Limit deviations of the dimensions specified in the manufacturer's drawings
	Inner box size	The outer size of the canvases	Overlap gap size	Dimensions of the location of door devices, hinges and other dimensions
Up to 1000 incl.
St. 1000 to 2000 incl.
Note - The values ​​of the maximum deviations of the dimensions of the gaps under the overlay are given for closed canvases with installed sealing gaskets.

5.2.4 Difference of front surfaces (sag) in welded fillet joints shall not exceed 2.0 mm.

5.2.5 The sagging of the door panels in the assembled door block with a threshold should not exceed 2.0 mm per 1 m of width.

5.2.6 Deviation from straightness of the edges of door panels and frames should not exceed 1.0 mm per 1.0 m of length.

NOTE The flatness of the door panels is controlled by measuring the distance from points on the surface of the panels to an adjacent horizontal surface.

5.2.7 The nominal diameters of holes for bolted connections and the maximum deviations from them, established depending on the method of formation and type of bolted connection, are taken in accordance with GOST 23118.

5.3 Performance characteristics

5.3.1 Operational characteristics of door units are given in Table 4.

Table 4 - Operational characteristics of door blocks

Characteristic name	Meaning		Door block group
Reduced resistance to heat transfer of door leafs, m 2 ° С / W, not less than *
Sound insulation, dB, not less*
Air permeability at ΔP 0 = 100 Pa, m 3 / (h m 2), no more *
Reliability, opening and closing cycles, not less than: For internal door blocks of auxiliary premises, evacuation emergency exits;
For internal door blocks, including offices, cabinets, hotel rooms, etc.;
For door blocks of entrances to apartments from stairwells;
For external entrance door blocks and reinforced entrances to buildings
Notes 1 The need to use performance characteristics marked with an "*" is established in the design and technical documentation, based on the purpose of the door unit. 2 Reliability is set taking into account the intensity of passage during operation: Doors of groups A and G - high level pass intensity; Doors of group B (entrance to apartments) - average level of passage intensity; Doors of group B (doors of the internal premises of public and industrial buildings) - the average level of intensity; Group B1 doors ( internal doors auxiliary premises, evacuation and emergency exits) - low level of passage intensity.

5.3.2 It is recommended to establish the operational characteristics of door blocks for a specific purpose in the design documentation for the construction (reconstruction) of the building and confirm the results of tests at test centers accredited for their right to conduct them.

5.3.3 Door blocks, depending on the strength class, must withstand the action of static loads in accordance with the requirements of Table 2, which characterize the deforming ability of the door block, including extrusion resistance, as well as the strength of the door leaf to the frame.

5.3.4 Door units must withstand the action of operational dynamic loads during opening and closing (imitation of a hit on a slope, hitting an obstacle, hitting a foreign object in the porch). Schemes for applying dynamic loads are shown in Figures B.1 - B.3 of Appendix B.

Dynamic loads created when testing the door with a freely falling load ( solid), are shown in Table 5.

Table 5 - Dynamic loads created by a freely falling load (solid body)

5.3.5 Door blocks, depending on the strength class, must withstand the impact of a soft inelastic body in accordance with the requirements of Table 6 when determining the strength (reliability) of fastening the door leaf to the frame. Door leaves are tested on both sides.

Table 6 - Impact (dynamic) loads created by the load (soft inelastic body)

Door block group	Strength class	Impact energy, J, no more	Mass of cargo m, kg

The layout of the impact points on a single-leaf door unit during the impact resistance test with a soft inelastic body (load) in the direction of opening the door leaf is shown in Figure B.4 of Appendix B.

5.3.6 When determining the strength of the structure, the material of the leaf and the quality of the finish, door blocks must withstand shock (pendulum) loads created by the load (solid body). The values ​​of shock (pendulum) loads are given in Table 7.

Table 7 - Impact (pendulum) loads created by a load (solid body)

Door block group	Mass of cargo m, kg	Impact energy, J
Note - The impact energy is calculated by the formula W = mqh(1-cosα), where m is the weight of the cargo; q - free fall acceleration; h - the height of the fall of the load; α- angle of deflection of the load.

5.3.7 Door blocks of group G of ordinary and reinforced categories (entrances to buildings, entrances to apartments), made in a burglar-resistant design, must comply with the requirements of regulatory documents * (4) in force on the territory of the state party to the agreement that adopted this standard.

5.3.8 Burglary resistance classes of group D door blocks and burglary resistance time are given in Table 8.

Table 8 - Classes of resistance to burglary of door blocks of group G

Burglary resistance class	Burglary resistance time, min, not less than
Notes 1 The set of tools used in the test is accepted in accordance with the regulatory documents * (5) in force in the territory of the state party to the agreement that has adopted this standard. 2 Burglary resistance time includes time intervals of at least 5 s for each tool change.

5.3.9 The force applied to the door leaf when closing until the required compression of the sealing gaskets, depending on the weight of the door leaf, should not exceed 120 N, while in the closed position the latch and the deadbolt of the lock should work without jamming. The force required to open the door leaf should not exceed 75 N (ergonomic requirements), for group B door blocks - 50 N.

Note - When evaluating the forces applied to the door leaf, it should be borne in mind that when testing group A door blocks, the pressure difference between rooms, rooms and the street or sudden wind load, as well as the presence of built-in protective devices and door closing devices. It should also be borne in mind that for door blocks intended for the passage of people with disabilities, the opening force should not be more than 5 N.

5.3.10 If artificial or natural leather, wood, wood-based materials, including those with natural or synthetic veneer, are used for cladding door panels, the cladding material must withstand without destruction an impact by a metal ball weighing 1 kg from a fall height of 1 m.

5.3.11 Appearance of products: color, permissible surface defects of facing materials and painted elements (risks, scratches, etc.) must correspond to standard samples approved by the head of the manufacturer.

Differences in color, gloss and surface defects visible to the naked eye from a distance of 0.6 - 0.8 m in natural light of at least 300 lux are not allowed.

5.3.12 Welded joints must be strong and meet the following requirements:

The metal of the welded joint and the boundary zone must not have cracks. Seam craters at the places where welding stops (ends) must be overcooked (welded);

Welded joints should have a smooth or evenly scaly surface without sharp transitions to the base metal;

Welded joints must be tight along the entire length and not have burns, constrictions, welds, lack of penetration, slag inclusions, etc.

5.3.13 The tensile strength of the metal of the welded joint shall not be lower than the requirements for the base metal.

5.4 Requirements for materials, accessories and gaskets

5.4.1 Materials and components used for the manufacture of door blocks must comply with the requirements of standards, specifications, technical certificates approved in the prescribed manner.

5.4.2 Materials and components must be resistant to climatic influences and have corrosion resistance in accordance with the regulations for these materials and components.

For door blocks used as entrances to the building and in contact with the external environment, it is recommended to use galvanized steel or steel with another type of protection that provides corrosion resistance of at least 240 hours of salt spray testing.

The type (type of protection) must be indicated in the passport for the products.

Requirements for corrosion resistance of locks and hardware - in accordance with GOST 538.

5.4.3 The surfaces of steel elements of boxes and sheets should not have cracks, mechanical damage, pits, distortions, rust. On the front surfaces of steel elements, slight local depressions, risks, waviness up to 0.5 mm deep are allowed, which do not reduce the functional properties and quality of products.

5.4.4 Steel parts of structures should be made of steel grades that ensure the strength and performance characteristics of structural elements, welded, bolted and other connections, depending on the nature and conditions of their work.

5.4.5 Sealing gaskets should be made of weather- and frost-resistant elastomer materials in accordance with GOST 30778.

5.4.6 Glued wooden cladding panels must comply with the requirements of GOST 30972, profile molded wooden details- GOST 8242.

5.5 Requirements for locking devices and hinges

5.5.1 In the manufacture of door blocks, locking devices, hinges and auxiliary parts intended for use in steel door blocks are used. Examples of designs of locks and hinges are shown in Figures B.5 - B.7 of Appendix B.

The type, number, location and method of fastening of locking devices and hinges are set in the working documentation, based on the size and weight of the opening elements of the product and the operating conditions of the door blocks. It is recommended to hang door panels on two hinges. Cloths of door blocks weighing more than 200 kg, as well as those used in public buildings with high traffic, can be hung on three hinges, if recommended by the hinge manufacturer. At the same time, the recommended location of the middle hinge is 150 - 200 mm lower than the top one.

5.5.2 For hanging door panels on a frame (frame), it is recommended to use overhead bearing or other hinges with the ability to adjust in different planes in accordance with GOST 5088.

5.5.3 Locks in accordance with GOST 5089 of at least class III must be installed in door blocks of groups A and B, locks of at least class II in door blocks of groups C, B1, locks of at least class IV in group G door blocks.

To improve the protective properties of door blocks, it is recommended to use multi-bolt locks with locking along the perimeter of the door block or locks with rods with additional locking in the upper and lower horizontal frame profiles.

For door blocks of groups A, B, D, installed in rooms equipped with a burglar alarm, it is recommended to install locks of classes III - IV according to GOST 5089 with an early response security system.

Note - When choosing locking devices (locks with various types secrecy mechanisms, multi-bar locking system, etc.) it must be borne in mind that the first attempts to open door structure begin with an attempt to open the lock(s) by destructive and/or non-destructive methods of opening. Therefore, the choice of a lock (locks) should be carried out on the basis of its (their) compliance with GOST 5089 with the assignment of a class according to the following parameters: mechanical strength, resistance to opening (breaking).

5.5.4 Locking devices must ensure reliable locking of the opening elements of door blocks. Opening and closing should be easy, smooth, without jamming.

5.5.5 The design of the locking devices and hinges shall ensure tight and uniform crimping of the sealing gaskets along the entire contour of the seal in the porches.

5.5.6 Door appliances and fasteners must comply with the requirements of GOST 538 and have a protective and decorative (or protective) coating in accordance with GOST 9.303.

5.5.7 If door blocks are installed on evacuation routes in public buildings, including kindergartens, schools, hospitals, emergency door opening devices "Antipanic" should be used to ensure quick evacuation. Requirements for anti-panic devices - according to GOST 31471.

5.6 Finishing requirements

5.6.1 In the manufacture of door blocks, apply different kinds finishes:

Coloring;

Facing with various materials;

Pasting with decorative (film) materials;

With the use of glass and double-glazed windows. The type of finish is specified in the order.

5.6.2 As finishing materials artificial and natural leather, decorative films, MDF boards (with natural or synthetic veneer, smooth or milled), wood, mirrors, plastic, fiberboard, paint and varnish and other materials are used in accordance with the requirements of regulatory documents for these materials. When choosing finishing materials, the operating conditions of the products should be taken into account.

5.6.3 Requirements for the finishing coating (lining) may be set by agreement between the manufacturer and the consumer in the contract (order) for the manufacture (supply) of products. In this case, it is allowed to assess the quality of the finish using reference samples agreed with the customer.

5.6.4 metal surfaces component parts before applying paintwork or polymer coating must comply with the requirements of GOST 9.402. Requirements for paint coatings - according to GOST 9.401, coating class not lower than IV, coating designation - according to GOST 9.032.

5.6.5 The quality of surfaces with finished paintwork must comply with the requirements of GOST 9.032. In this case, it is recommended to apply the first layer with a primer paint, subsequent layers with protective and decorative paints and varnishes.

5.6.6 The front surfaces of the door blocks should not have cracks, burrs, mechanical damage. Surface defects visible to the naked eye from a distance of 1.5 m in natural light of at least 300 lux are not allowed.

The requirements for the front surfaces are set in the manufacturer's technical documentation and / or in the supply contracts, taking into account GOST 9.301 and GOST 9.032.

Non-facial surfaces of products may have recesses, risks, waviness and other defects that do not reduce the functional properties and quality of products.

Hole edges must be free of burrs and burrs.

5.6.7 Color (tone) and degree of gloss (gloss, dullness) of the finishing coating must correspond to standard samples approved by the head of the manufacturer and agreed with the customer.

5.6.8 Paint and varnish coatings must have an adhesive strength (adhesion) with the surface to be trimmed of at least 2 points, determined by the lattice notch method in accordance with GOST 31149.

5.6.9 It is recommended to set the thickness of paint and varnish coatings, as well as the procedure for monitoring this indicator, in the technological documentation for the manufacture of products.

5.6.10 Protective and protective and decorative coatings must be resistant to temperature and humidity operational impacts.

5.6.11 Facing of door panels is made from MDF boards according to regulatory documents or from various breeds wood. MDF boards can be finished with sliced ​​veneer according to GOST 2977, peeled veneer according to GOST 99 or synthetic veneer according to regulatory documents. It is allowed to use milled or smooth MDF boards.

5.6.12 The front surfaces of wood parts used for finishing door panels should not have processing defects and defects in wood, with the exception of curls, sag, eyes, fiber inclination up to 5% according to GOST 2140.

The roughness of the front surfaces of wood parts R m should not be more than 60 microns according to GOST 7016, the moisture content of the wood should be in the range from 8 to 12%.

5.6.13 The design of the fastening of facing parts made of wood and board materials to the steel elements of the door blocks should provide the ability to compensate for their temperature and humidity deformations.

The shape and dimensions of the sections of the facing profiles adjacent to the steel surfaces of the external products must provide a minimum area of ​​​​contact with these surfaces, as well as the possibility of ventilating the cavity between them, otherwise the contacting surfaces must be protected by paintwork or other protective materials.

5.6.14 Double-glazed windows used in the construction of door blocks must comply with GOST 24866. It is recommended to use double-glazed windows with reinforced types of glass: strained glass- in accordance with GOST 30698, laminated glass - in accordance with GOST 30826.

For glazing door blocks of group G, it is recommended to use as external glass: laminated glass - according to GOST 30826, tempered glass - according to GOST 30698.

5.6.15 Constructive decisions attachment points for double-glazed windows (glasses), as well as panels for filling the opaque part of the door block, should prevent the possibility of their dismantling from the outside. The fastening of the layouts should not cause pinching and point stresses in the glass.

5.6.16 Double-glazed windows (glasses) are mounted using sealing gaskets made of elastomeric materials in accordance with GOST 30778.

5.7 Completeness and marking

5.7.1 Depending on the purpose of the door blocks in the project documentation, as well as when placing orders, it is necessary to provide for the complete set of products with valves, door closing devices (door closers), opening angle limiters (stops), eyes, chains, etc.

5.7.2 The complete set of door blocks when they are delivered to the consumer must comply with the requirements established in the contract (order).

Products should be delivered assembled with locking devices installed.

The set of keys must be handed over to the customer in a sealed form against the signature of the customer (buyer).

5.7.3 The delivery set should include a quality document (passport) and an operating manual for door blocks, including recommendations for installation.

5.7.4 Each door block is marked with a label indicating the name of the manufacturer, type, symbol of the product indicating the strength class, date of manufacture and / or order number, sign (stamp) confirming the acceptance of the product by the technical control service. Product marking must reflect the actual requirements for the type of doors specified in the order, as well as the possibility of identification in order to establish the authenticity of the manufacturer, specified by the manufacturer.

5.7.5 The door devices included in the product must be marked in accordance with the regulatory documents for these devices.

5.8 Rules for installation (assembly) of locks

5.8.1 Before installing the lock on the door, it is necessary to check its functioning - closing and opening from both sides of the lock, the operation of the latch from the handles, the key, the presence and operation of transcoding devices.

5.8.2 Installation of locks when assembling a door block in a door production environment

5.8.2.1 The design of the door block shall provide for a special niche(s) for installing a specific lock(s).

5.8.2.2 The lock niches must be free from voids, foreign objects (fillers, insulation, chips, etc.), which can disrupt the normal operation of the lock.

5.8.2.3 All necessary holes (fixing holes, technological holes, places of completion for installing the lock) are made according to the markings made according to the template included in the lock kit. The use of the lock as a conductor for marking when inserting the lock is not allowed in order to prevent clogging of the lock mechanism with chips.

5.8.2.4 When installing a lock with vertical rods, it is necessary to ensure their free movement, excluding contacts with internal parts of the door structure. It is allowed to use intermediate guides to ensure the longitudinal rigidity of the rods.

5.8.2.5 When installing a lock with a front plate, an easily detachable connection of the lock rods with external vertical rods should be used, which is carried out when the lock is inserted into the lock niche from the end of the door, or a hatch should be provided on the inside of the door leaf.

5.8.2.6 Availability of a hatch when mounting a lock without a front plate (on bollards) from the inside for maintenance of the lock, vertical rods at the points of connection with the rods of the lock or its replacement is mandatory. Access to the lock can also be provided by the presence of a removable decorative cladding panel that covers the entire interior of the door leaf.

Note - When installing the lock according to 5.8.2.6, it should be borne in mind that the first stroke of the bolt will be a passage through the wall of the door leaf frame. In this case, locks with bolts protruding from the body should be ordered. During installation, it is necessary to ensure that the bolt, passing through the frame, does not touch it and exits freely.

5.8.2.7 Before inserting the lock into the niche for final installation, the niche should be cleared of foreign objects and debris.

5.8.2.8 When assembling the lock, significant forces and impacts on the cylinder mechanism should be avoided.

5.8.2.9 Fastening of locks should be carried out with screws; fastening of locks by welding is not recommended.

5.8.2.10 For security purposes, at least two locks or one lock with two secret mechanisms are installed on the door blocks of groups A, B, D, one of which must be with a latch, the other must fix the door leaf in the closed position, after which the locks are locked . The locks must be adjusted so that the bolts come out freely, without touching the walls of the door frame inlet (for clearance recommendations, see paragraph 6.1.8 of GOST 5089). The inlet in the door frame for the entry of the bolt shall be cleaned in accordance with 5.8.2.7.

Note - For group A door blocks installed in public buildings, it is recommended to use electromechanical (electronic) locking devices.

5.8.2.11 When mounting the cylinder lock and installing the cylinder mechanism, the length of the cylinder mechanism and the asymmetry with respect to the middle of the leash shall be chosen so that the cylinder mechanism protrudes from the outside of the armor plate by no more than 3–5 mm. When installing the armor plate, the length of the cylinder mechanism is chosen taking it into account.

5.8.2.12 After assembling the door block, make sure that the locks are functioning normally.

5.8.2.13 Finished door blocks should be transported with the locks "open" to prevent possible deformation of the crossbars during transportation.

5.8.2.14 Installation of a door block in an opening should be carried out by manufacturers of door blocks or an organization installing door blocks in accordance with GOST 30971 or regulatory documents that establish requirements for the installation of door blocks in openings. General requirements for the installation of door blocks are given in Appendix D.

Note - When forming the design of the junction mounting units, it is necessary to take into account the scope of the door blocks, the features of the thermal expansion of door frames and door panels, and the requirements for burglary resistance.

5.8.2.15 Before installation, the door unit should be freed from packaging, check that possible packaging residues (especially polyethylene) are not pulled into the gaps between the deadbolt and the lock body.

5.8.2.16 After installing the door unit in the opening, before final sealing, check the operability of the door leaf and locks.

Note - When using mounting foam for sealing, it is necessary to exclude the possibility of its getting into the door frame, into the movement zone of the deadbolt to prevent disruption of the normal functioning of the lock.

5.8.3 Installing a lock in a functioning front door

5.8.3.1 If it is necessary to improve the security properties of a functioning door, an additional lock is installed in a new place on the door leaf.

5.8.3.2 Additional and already installed locks must be with different security systems. If there is a lock with a latch on the door leaf, then the additional lock intended for installation must be without a latch.

5.8.3.3 Before installing an additional lock, inspect the interior of the door leaf (removable panel on the inside, a hatch under the upholstery or a removable wall, etc.) so that when cutting through the door frame, do not get into the reinforcement or partition.

5.8.3.4 Marking for insertion of an additional lock must be carried out according to the scheme included in the delivery set, or according to the dimensions of the lock.

5.8.3.5 The cavity of the niche must be freed from foreign objects and debris so that the lock enters it freely. In order for the new niche not to be isolated from the rest of the cavity of the door leaf, it is necessary to exclude the possibility of foreign objects getting into the lock mechanism during operation of the door, which may affect its normal operation.

5.8.3.6 When mounting the lock, forces and impacts on the cylinder mechanism are not allowed.

5.8.3.7 It is not allowed to drill the walls of the door block to correct the location of the key channel or the cylinder mechanism with a lock inserted into the niche.

5.8.3.8 The hole for the passage of the bolt of the lock into the door frame must ensure the free passage of the bolt while holding the leaf with the latch.

5.8.3.9 When choosing a cylinder mechanism, its reliability class should be taken into account depending on the area of ​​application in accordance with Table 1 of GOST 5089.

5.8.3.10 It is recommended to purchase the cylinder mechanism after installing the lock, considering that the lock may not be installed in the middle part of the door thickness. In this case, the cylinder mechanism must be asymmetrical with respect to the middle of the driver.

Note - The length and symmetry of the cylinder mechanism can be calculated by focusing on the end of the door leaf and the middle of the bolt of the lock, taking into account the end plates. The cylinder mechanism should not protrude from the lining (at least from the outside) by more than 3 - 5 mm. If it is planned to install an armor plate, then the dimensions of the cylinder mechanism are adjusted to take it into account. The installation of an armor plate is desirable, as it increases the resistance of the cylinder mechanism assembly to breaking.

5.9 Malfunction and warranty service of the lock

Violation of the normal operation of the lock, caused by its improper operation, as well as the appearance of any changes in the lock that are not provided for by the design, remove the obligations of the manufacturer (dealer) for warranty service.

Notes

1 Locks are not lubricated during operation (except for what was lubricated at the enterprise). It is allowed to carry out preventive cleaning of the cylinder mechanism once a year with WD-40 or silicone-based aerosols.

2 In case of specific changes in the operation of the lock, please contact the service department.

3 High class cylinder keys are packed in black plastic bags. It is not allowed to open packages with keys without making sure that the cylinder mechanism is suitable, otherwise its exchange may be refused.

4 Key copy cards are included in the high-end cylinder mechanism kit. Without presenting a copy card, orders for the production of duplicate keys are not accepted.

6 Acceptance rules

6.1 Door blocks must be accepted by the manufacturer's technical control service for compliance with the requirements of this standard, as well as the conditions specified in the contract for the manufacture and supply of products. Confirmation of acceptance of products by the technical quality control service is the execution of a document (passport) on the acceptance of products.

6.2 The quality of door units established by this standard is confirmed by:

Incoming control of materials and components;

Operational production control;

Every shift acceptance control of finished products;

Control acceptance tests of each batch of products, carried out by the technical control service of the manufacturer;

Periodic and certification testing of products in independent testing centers;

Qualification tests.

6.3 The procedure for conducting incoming and operational production control at workplaces is established in the technological documentation.

If the manufacturer completes the door blocks with parts of its own manufacture, they must be tested and accepted in accordance with the requirements of regulatory documents for these parts.

6.4 The list of indicators controlled during the shifts of acceptance control of finished products, acceptance tests of each batch of products and during periodic tests is given in Table 9.

Table 9

Name of indicator	Claim number	Test method	Type of control*			Periodicity (at least)
Appearance (including color)
Seal tightness						For control type I - once per shift, for type II - each batch
Operation of hinges and locking devices						For control type I - once per shift, for type II - each batch
Marking		Visually				For control type I - once per shift, for type II - each batch
Deviation of controlled nominal dimensions** and edge straightness		According to 7.2.1, 7.2.2				For control type I - once per shift, for type II - each batch
Quality of welded joints						For control type I - once per shift, for type II - each batch
						For control type II - once per shift
						Once every three years
						Once every three years
Impact resistance of a soft inelastic body						Once every three years
Solid body impact resistance						Once every three years
Reliability	5.3.1, table 4					Once every three years
Ergonomic Compliance						Once every three years
Reduced resistance to heat transfer	5.3.1, table 4
Breathability	5.3.1, table 4					When put into production
Hack resistance
Soundproofing	5.3.1, table 4					When putting into production, changing the design, replacing the material
Correct installation of the lock						Once per shift
* Type of control: I - daily acceptance control; II - control of each batch (acceptance tests), carried out by the technical quality control service of the manufacturer; III - control during periodic tests carried out in independent test centers. ** Controlled nominal dimensions for test type II are set in the technological documentation.

6.5 Appearance, tightness of sealing gaskets, operation of hinges and locking devices, marking and quality of welded joints are checked by the method of continuous control.

6.6 Finished door blocks that have passed control are marked. Products that do not pass the control of at least one indicator are rejected.

6.7 To conduct acceptance tests for each batch of door blocks conducted by the technical quality control service of the manufacturer, samples of door blocks are taken from a batch of products by random selection in the amount of 3% of the batch volume, but not less than 3 pcs. If there are less than three products in a batch, each product is subjected to control.

In the event of a negative test result for at least one indicator of at least one sample, a re-check of the quality of products is carried out on a double number of samples for the indicator that had a negative test result.

If a discrepancy between the indicator and the established requirements is detected again on at least one sample, the controlled and subsequent batches of products are subjected to continuous control (sorting). With a positive result of continuous control, they return to the established procedure for acceptance tests.

6.8 Periodic tests to determine the performance indicators specified in 5.3.1, 5.3.3 - 5.3.8 are carried out when putting into production, when making changes to the design of the door block or the technology for their manufacture, but at least once during the period specified in table 9, as well as when certifying products. In justified cases, it is allowed to combine periodic and certification tests (certification tests are carried out in the scope of periodic ones).

Qualification tests are carried out for all indicators when putting products into production.

Tests are carried out in test centers accredited for the right to conduct them.

Tests to determine the reduced resistance to heat transfer, air permeability, sound insulation are subjected to structures designed to absorb these loads in accordance with their area of ​​application.

6.9 The consumer has the right to conduct a quality control check of door blocks, observing the sampling procedure and test methods specified in this standard.

When accepting products by the consumer, a batch is considered to be the number of products shipped for a specific order, but not more than 90 pieces, drawn up with one quality document.

Table 10 - Single step quality control plan

Lot volume, pcs.	Sample size, pcs	acceptance number
		minor defects	Critical and Major Defects
	All products
Note - Significant and critical defects include: defects leading to loss of performance, unrecoverable without replacing part of the product (breakage of a steel profile, etc.), exceeding the maximum deviations of dimensions established in regulatory documents by more than 1.5 times, understaffing products. Minor defects include removable defects: minor surface damage, unadjusted door appliances and hinges, exceeding the maximum deviations of dimensions established in regulatory documents by less than 1.5 times.

By agreement of the parties, acceptance of products by the consumer is allowed to be carried out at the manufacturer's warehouse, at the consumer's warehouse or in another place specified in the supply contract.

6.11 Each batch of door blocks must be accompanied by a quality document (passport). An example of filling out a product passport is given in Appendix D.

6.12 Acceptance of door blocks by the consumer does not release the manufacturer from liability in case of detection of hidden defects that led to a violation of the performance characteristics of the products during the warranty period.

6.13 General requirements for incoming inspection when supplying door blocks to building objects or private consumers

6.13.1 Upon delivery of door blocks to the facility, the manufacturer is obliged to confirm their compliance with the current regulatory documents, as well as the requirements of the project (if any). The specified requirement is documented in the form of a package of accompanying documentation. The supporting documentation package should include:

Product passport according to Appendix D;

Test reports in accordance with sections 7.2 and 7.3;

Technical, engineering calculations (if any) confirming performance in accordance with 5.3.1;

Regulatory document for the installation of products subject to the conclusion of a single contract for the manufacture and installation of products.

6.13.2 During the input control of door blocks delivered to the facility or transferred to specialized dealer centers, the following is checked:

The number of products installed in the order;

Product type;

Availability of marking (in accordance with 5.7);

Overall dimensions (optional);

Appearance (presence of defects);

Completeness (in accordance with the order);

The presence of a package of accompanying documentation.

6.13.3 According to the results of the input control at the facility, an act of acceptance and delivery of door blocks is drawn up.

Note - If, as a result of storage or after installation of the products, defects are found that are not determined upon acceptance of the products, the manufacturer is not responsible for this.

7 Methods of control and testing

7.1 Methods of control and testing during incoming and production operational control are established in the technological documentation.

7.2 Methods for determining the indicators controlled during the daily acceptance control and control acceptance tests are given in 7.2.1 - 7.2.7.

7.2.1 The geometric dimensions of the door blocks and the straightness of the edges are determined using the methods established in GOST 26433.0 and GOST 26433.1.

Limit deviations of the nominal dimensions of product elements, the difference in the lengths of the diagonals and other dimensions are determined using a metal measuring tape according to GOST 7502, a caliper according to GOST 166, probes according to regulatory documents.

Limit deviations from the straightness of the edges are determined by applying a calibration ruler in accordance with GOST 8026 or a building level with a flatness tolerance of at least the 9th degree of accuracy in accordance with GOST 9416 to the part under test and measuring the largest gap using probes according to regulatory documents.

7.2.2 Limit deviations of the nominal dimensions of the gaps under the overlay are checked using a set of probes or a ruler in accordance with GOST 427.

7.2.3 The sag in the mating of adjacent parts lying in the same plane is determined with a feeler gauge as the distance from the edge of the ruler according to GOST 427, applied to the upper mating surface, to the lower surface.

7.2.4 Appearance, quality of welded joints, color and quality of finishing of door blocks are evaluated visually by comparison with standard samples approved by the head of the manufacturer, from a distance of 1.5 m in natural light of at least 300 lux.

7.2.5 Adhesion (strength of adhesion of paint and varnish coatings to the metal surface) is determined by the lattice notch method according to GOST 31149.

7.2.6 The tightness and correct installation of sealing gaskets, door fittings, fasteners and other parts, color and absence of cracks in welded joints, marking and packaging are checked visually.

To determine the tightness of sealing gaskets, compare the dimensions of the gaps in the porches and the degree of compression of the gaskets, which should be at least 1/5 of the height of the uncompressed gasket. Measurements are carried out with a caliper according to GOST 166 or a ruler according to GOST 427.

The tightness of sealing gaskets with closed canvases can be determined by the presence of a continuous trace left by a coloring matter (for example, colored chalk), previously applied to the surface of the gaskets and easily removed after inspection.

7.2.7 The operation of the door hinges is checked by opening and closing the leaf elements of the product ten times. In case of detection of deviations in the operation of the door hinges, they are adjusted and re-checked.

7.3 Methods for determining the indicators controlled during periodic tests are given in 7.3.1 - 7.3.10.

7.3.1 The reduced resistance to heat transfer is determined in accordance with GOST 26602.1.

7.3.2 Air and water permeability is determined according to GOST 26602.2.

7.3.3 Sound insulation is determined according to GOST 26602.3.

7.3.4 Wind load resistance is determined according to GOST 26602.5.

7.3.5 Indicators of reliability, resistance to static, dynamic, shock loads and ergonomic indicators of door blocks are determined according to the methods of testing laboratories, Appendix B of this standard and GOST 30777.

Tests of locking devices for non-failure operation, load resistance and compliance with ergonomic requirements are carried out on special equipment (stands) according to regulatory documents, programs and methods of testing laboratories.

After testing, the product must remain operational.

When testing to determine the resistance to dynamic loads, the load that occurs when the door leaf is suddenly opened (for example, during a draft) at the moment of contact of the door leaf with the slope of the doorway is simulated.

The test to determine the impact resistance of a soft inelastic body is carried out with a three-time impact, for example, with a pear with a diameter of the lower part (300 ± 5) mm and a mass of (30 ± 0.5) kg, from a height of fall according to 5.3.4 into the central zone of the sample. After testing, the residual deformation shall not exceed 2 mm.

At the end of the tests, the door blocks must remain operational, while the deadbolt of the lock and the latch must freely enter their mating parts.

Before and after testing the door units for failure-free operation, it is recommended to check the tightness of the seals in accordance with 7.2.6.

When testing door blocks to determine the resistance to a static load (see Appendix B) acting perpendicular to the plane of the door leaf in the free corner zone, it is recommended to use the graph of free corner deflection versus the applied load given in Appendix A.

When applying a load in the plane of the door leaf, the leaf must be open at 90° with respect to the frame. The load is applied in the area of ​​the free corner, kept for at least 5 minutes. Deformation is analyzed, including tearing of a loop from a web or box.

7.3.6 When testing door blocks to determine the resistance to impact load created by a solid body, a three-time blow is carried out in the center of the door leaf and, if necessary, in the corner zones with a solid body weighing 2 kg. The average value of the impact damage diameter should not exceed 2.0 mm, the depth - 1.5 mm. After testing, the door blocks must remain operational.

7.3.7 Corrosion resistance of metal of door blocks and locking devices is determined in accordance with GOST 9.308, GOST 538 and regulatory documents for specific products.

7.3.8 Lock products must be tested with the subsequent assignment of a class of resistance to opening and breaking in accordance with GOST 5089, GOST 19091, as well as with regulatory documents * (6) in force on the territory of the state party to the agreement that adopted this standard.

7.3.9 Wind loads on door units of group A are measured according to the normative documents for test methods, taking into account the fact that the entrance doors to the buildings are located on the first floors of the buildings. After testing, the deflection value shall not exceed 6 mm. Structural elements must withstand wind loads without damage, the door leaf must be closed (all locking devices must be engaged).

Note - Destruction and replacement of glass or double-glazed windows is allowed.

7.3.10 Quality control methods for welded joints are established in the manufacturer's technical documentation in accordance with GOST 5264.

7.3.11 Burglary test

7.3.11.1 Burglar resistance tests are carried out on door blocks with enhanced protective functions in accordance with the regulatory documents for test methods, including in accordance with the regulatory documents * (4) in force on the territory of the state party to the agreement that adopted this standard. Tests are carried out on door blocks in the direction of opening the door leaf until the sample breaks, i.e. until the door is opened or to a state in which, due to deformation, the web is jammed and further continuation of the test does not make sense.

7.3.11.2 Burglary resistance is determined by the time spent on breaking, and depending on the type of tool used. Requirements for a tool for manual hacking - in accordance with the regulatory documents * (5) in force in the territory of the state party to the agreement that has adopted this standard.

7.3.11.3 The protection class of laminated glass is determined according to GOST 30826.

Note - If there are documents confirming the glass protection class, it is allowed during the testing process not to apply static and dynamic loads to the glass unit.

8 Packaging, transport and storage

8.1 Packaging of door blocks should ensure their safety during storage, handling and transportation.

8.2 Devices or parts of devices not installed on door blocks must be packed in polyethylene film in accordance with GOST 10354 or in other packaging material that ensures their safety, firmly tied up and delivered complete with products.

8.3 Before transporting the door blocks, it is recommended to fix or secure the door leafs in any way that ensures their safety during transportation.

8.4 Door blocks are transported by all means of transport in accordance with the rules for the carriage of goods in force for this type of transport.

8.5 During storage and transportation of door blocks, they must be protected from mechanical damage and the effects of precipitation.

8.6 During storage and transportation, it is recommended to install gaskets made of elastic materials between the products.

8.7 Door blocks are stored in a vertical or horizontal position on wooden linings, pallets or in special containers in covered areas in accordance with GOST 15150 (UHL, HL versions).

9 Manufacturer's warranties

9.1 The manufacturer guarantees the compliance of the door blocks with the requirements of this standard, subject to the rules of transportation, storage, installation, operation, as well as the scope established in the regulatory documents and project documentation.

9.2 Upon agreement with the consumer (customer), the manufacturer provides service, including emergency opening of doors in case of loss or breakage of keys, advice on the use and operation of door devices and locking devices, and repair of products.

9.3 The warranty period for the operation of door blocks is established in the supply contract, taking into account the operating conditions:

At least one year from the date of shipment for door external entrances to buildings of blocks of groups A and D with a high intensity of passage with the risk of negligence;

At least three years from the date of shipment for door blocks of groups B and C with an average intensity of passage and with a limited risk of negligence;

At least two years from the date of shipment for group B1 door blocks with low level the intensity of the passage and the risk of negligence.

9.4 Warranty period of storage of door blocks is one year from the date of shipment of products by the manufacturer, provided that they are stored in accordance with Section 8.

_____________________________

*(1) In the Russian Federation, pressure changes from 400 to 1800 Pa are accepted according to SP 20.13330.2011 "SNiP 2.01.07-85 Loads and Impacts".

*(2) In the Russian Federation, the requirements of SP 50.13330.2011 "SNiP 23-02-2003 Thermal protection of buildings" and SP 51.13330.2011 "SNiP 23-03-2003 Noise protection" are followed.

*(3) In the Russian Federation - according to GOST R 56177-2014 "Door closing devices (door closers). Specifications".

*(4) In the Russian Federation, burglar-resistant door blocks must comply with the requirements of GOST R 51242-98 "Protective mechanical and electromechanical structures for door and window openings. Technical requirements and test methods for resistance to destructive influences."

*(5) In the Russian Federation, a set of tools used in testing to determine the burglary resistance class of group G door blocks must comply with the requirements of Table 1 of GOST R 51242-98 "Protective mechanical and electromechanical structures for door and window openings. Technical requirements and methods tests for resistance to destructive influences", Appendix B of GOST R 50862-2011 "Safes, safe rooms and vaults of valuables. Requirements and test methods for resistance to burglary" and Appendix C of GOST R 52582-2006 "Locks for protective structures. Technical requirements and test methods for resistance to criminal unlocking and breaking".

*(6) GOST R 52582-2006 "Locks for protective structures. Technical requirements and test methods for resistance to criminal unlocking and burglary" is in force in the Russian Federation.

Annex A
(reference)

An example of determining the strength class of door blocks

This appendix provides an example of determining the strength class of a door block by the value of a static load acting perpendicular to the plane of the door leaf in the area of ​​the free corner.

Figure A.1 - Graph of the dependence of the deflection Δf of the free corner of the leaf on the applied load P when testing door blocks to determine the resistance to a static load acting perpendicular to the plane of the leaf in the area of ​​the free corner

Annex B
(reference)

Examples of designs of door blocks and options for filling door panels

Figure B.1 - An example of the design of a door block, the leaf of which is welded from two steel sheets or with an outer steel sheet and an inner sheet of fiberboard and steel profiles, a frame (frame) is made of a bent steel profile

Figure B.2 - Options for filling the door leaf

Figure B.3 - An example of the design of a door block with a "sandwich" leaf with two profiled and rolled steel sheets, with L-shaped steel reinforcing profiles and filled with high-density mineral wool, a frame (frame) - from an all-metal complex steel profile molds made by cold rolling galvanized steel

Figure B.4, sheet 1 - Options for filling the door leaf of the "sandwich" type

Figure B.4, sheet 2

Figure B.5 - Examples of door hinges on a support rod

Figure B.6 - An example of a mortise combination lock with two secret mechanisms and vertical rods

Figure B.7 - Example of a lock with a hook bolt

Figure B.8 - An example of an elastic seal of a special shape with a leg for installation in a groove

Annex B
(mandatory)

Methods for determining the resistance to static loads and schemes for applying dynamic loads

B.1 Resistance to static load applied in the plane of the door leaf

B.1.1 When determining the resistance to a static load applied in the plane of the door leaf, the load (sequentially from the smallest to the largest) is applied to the open leaf by 90 ° in the direction from top to bottom in the zone of the free corner (the application point is set) for 5 min.

B.1.2 After removal of the load, the presence (or absence) of permanent deformation is revealed. If the residual deformation fits into half of the gap between the leaf and the frame (in the lower and vertical parts of the door in the area of ​​the free corner) or is completely absent, the door passed the test.

B.2 Resistance to static load applied in the area of ​​the free corner of the door leaf perpendicular to its plane

B.2.1 When determining the resistance to a static load applied in the plane of the door leaf, the load (successively from smallest to largest) is applied in the direction of opening of the door leaf (with the door closed on all locks) in the area of ​​the free corner (the application point is given) in within 5 min.

B.2.2 After the load is removed, the presence (or absence) of permanent deformation is determined. If the permanent deformation (in the area of ​​the free corner) does not exceed 1/5 of the thickness of the seal (see 7.2.6), the door passed the test. Otherwise, a gap will open for the passage of air and the sound insulation and burglary resistance will decrease.

B.3 Resistance to static load applied in the hinge area perpendicular to the plane of the door leaf

B.3.1 When determining the resistance to a static load applied in the area of ​​the hinges perpendicular to the plane of the door leaf, the load (successively from smaller to larger) is applied in the direction of opening of the leaf (while the door must be closed on all locks) in the area of ​​\u200b\u200beach hinge (application points are given ) within 5 min.

B.3.2 After the load is removed, the presence (or absence) of permanent deformation is determined. If the permanent deformation in the area of ​​each hinge does not exceed 1/5 of the thickness of the seal (see 7.2.6), the door passed the test. Otherwise, a gap will open for the passage of air and the sound insulation and burglary resistance will decrease. Schemes for applying dynamic loads are shown in Figures B.1 - B.3.

Figure B.1 - Scheme of application of dynamic load when hitting the opening angle limiter

Figure B.2 - Diagram of the application of dynamic load upon impact with a foreign object in the porch when closing the web

Figure B.3 - Scheme of application of dynamic load when testing for impact resistance with a soft inelastic body (load) in the direction of opening the door leaf

Figure B.4 - Diagram of the location of impact points on a single-leaf door unit when testing for resistance to impact with a soft inelastic body (load) in the direction of opening the door leaf

General requirements for the installation of door blocks

D.1 Requirements for the installation of door blocks are established in the design documentation for construction sites, taking into account the design options adopted in the project for the junction of products to walls, designed for specified climatic and other loads.

D.2 Installation of door blocks should be carried out by specialized construction companies or specially trained teams of the manufacturer. Completion of installation work must be confirmed by an acceptance certificate, which includes the manufacturer's warranty obligations.

D.3 At the request of the consumer (customer), the manufacturer (supplier) of door blocks must provide him with a standard installation instruction approved by the head of the manufacturer and containing:

Drawings (diagrams) of typical mounting junctions;

List of materials used (taking into account their compatibility and temperature conditions of use);

The sequence of technological operations for the installation of door blocks.

D.4 When designing and executing junction nodes, the following conditions must be met:

The sealing of mounting gaps between the products and the slopes of the openings of wall structures must be tight, tight around the entire perimeter of the door block, designed to withstand climatic loads from the outside and operating conditions inside the premises;

The design of the junction points of external products (including the location of the door block along the depth of the opening) should prevent the formation of cold bridges (thermal bridges) that lead to the formation of condensate on the internal surfaces of doorways;

The operational characteristics of the structures of the junction points must meet the requirements established in the effective on the territory of the state party to the agreement that adopted this standard, building codes oh and the rules.

A version of the mounting assembly of the internal door unit is shown in Figure D.1.

Figure D.1 - Version of the mounting assembly of the internal door unit

D.5 The number and location of the mounting "lugs", the type, diameter and length of the fasteners are set in the design documentation, taking into account the material of the walls and the design of the doorway. It is recommended to use building anchors with a diameter of at least 10 mm as fasteners for mounting products. The distance between fasteners is at least 700 mm.

It is not allowed to use sealants, adhesives, foam insulation, as well as building nails for fastening products.

D.6 Door blocks should be installed according to the level and plumb. The deviation from the vertical and horizontal profiles of boxes of mounted products should not exceed 1.5 mm per 1 m of length, but not more than 3 mm for the height of the product. If the opposite profiles are deviated in different directions ("twisting" of the box), their total deviation from the normal should not exceed 3 mm.

The door block is installed in the prepared doorway symmetrically with respect to the central vertical of the opening. The deviation from symmetry should not exceed 3 mm in the direction of the slope of the opening, intended for fastening the profile of the box with hinges. Deviation from symmetry to the other side of the opening is not recommended.

D.7 To fill mounting gaps (seams) of external products, mounting foam, silicone sealants, pre-compressed sealing tapes(PSUL) (compression tapes), insulating polyurethane foam cords, foam heaters, mineral wool and other materials that have a hygienic conclusion and provide the required performance of the seams.

D.8 When arranging assembly joints and installing external door blocks, it is recommended to take into account the requirements of GOST 30971.

An example of filling out a door block passport

Passport (document of quality) steel door block, outdoor, reinforced according to GOST 31173-2016 ________________________________________________________ (name of manufacturer) _________________________________________________________ (address, phone, fax of the manufacturer) _________________________________________________________________________ a) design - single-floor, right-hand execution, with a threshold, opening inwards; b) overall dimensions - height 2300 mm, width 970 mm. Symbol DSN, A, Op, Prg, Vn, P2ls, M3, UZ GOST 31173-2016 Certificate of conformity (in the presence of) _____________________________ (N certificate) Completeness a) type of finishing of the canvas - combined (milled MDF board; vinyl artificial leather); b) type (type) of protection against corrosion of the material of the door block - galvanization; c) door hinges - two overhead bearing hinges; d) locking devices - a lever lock of the class ... and a lock with a cylinder mechanism of the class ...; e) the number of contours of sealing gaskets - 2 circuits; e) additional information. The scope of delivery of the product includes: closer (regulator closing), door stop (opening limiter), operating instructions. Tested performance The reduced resistance to heat transfer is 0.65 m 2 ° C / W. Air permeability at ΔP 0 100 Pa - 15 m 3 / (h m 2). Sound insulation 22 dB. Reliability, opening and closing cycles 500,000. Mechanical strength class M2. The warranty period is at least one year. Batch number Order number/item in the order QCD Receiver Date "___" _______ 20 ___ manufacturing ________________ (signature)

GOST regarding metal fire doors, requirements for them and features of operation.

What are the requirements for GOST?

To protect production, personal property and other valuables from damage as a result of fire, as well as to maximize the localization of the fire itself, it is necessary to install special fire doors. They are able not only to withstand very high temperature, but also comply with all safety standards and requirements. Unfortunately, not all manufacturers are responsible for their work, which means that in order to choose a really high-quality product, you need to know what features should be inherent in fire doors. This is what will be discussed next.

In most cases, fire resistant metal doors are installed as an emergency exit. In accordance with the current GOST 31173-2003, they must have locks, but, at the same time, they can be opened quite easily. GOST prescribes the manufacture of metal fire doors in such a way that, if necessary, even a child can use them. Given the fact that in the event of a fire door handles can get very hot and leave burns upon contact, GOST obliges to make a special button on the doors, or to connect the opening mechanism to the middle bar, maintaining the minimum effort required to open.

As for the opening of the door itself, for the most convenient, safe and effective use doors should open towards the exit. In this way, the accumulation of a large number of people directly at the exit can be minimized.

Particular attention should be paid to the material used for finishing. First of all, it should not be afraid of the direct impact of fire, melt, and even more so ignite.

In the event that at least one of the above nuances is not observed, this can have an extremely negative impact on the life and health of people. If all the norms and requirements prescribed by GOST 31173-2003 are fully complied with, this will not only prevent the spread of fire, but it is also likely to save someone's life.

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If you pay attention to the requirements that apply to fire safety, and, as a result, to fire doors, at various enterprises, then they are, in fact, almost the same type.

• first of all, the door should withstand direct fire as long as possible, but at the same time not melt or deform;
• prevent the spread of smoke and carbon monoxide;
• easy to open.

Production features

In accordance with GOST 31173-2003, for thermal insulation and design of fire doors, it is allowed to use only those materials that are not subject to ignition, even under the influence of direct fire. Similar requirements apply to consumables. Among other things, handles, fittings, locks and other elements must have a minimum thermal conductivity. Only in this case, they will maintain a sufficiently low outside temperature and will not cause burns when in contact with the skin. decorative trim is simply missing.

As for the exterior finish, only those compositions and paints that are fireproof can be used for it, due to which additional protection against fire is provided for the door.

Based on the above requirements, not all manufacturers have a license allowing the production of metal fire doors. The main condition for obtaining it is the availability of special equipment capable of producing products of the appropriate quality.

Where are fire doors used?

Despite the fact that the production of fire doors requires the use of specialized materials with fireproof properties, the cost of the products themselves is quite acceptable.

As a rule, the main objects where such doors can or should be installed are production shops and premises, service stations, private houses, warehouses, as well as special-purpose premises.

In fact, this list can be continued almost indefinitely, the only thing that remains is that the fire door is installed in those rooms that need to be protected from fire.

Design features of fire doors

fire door design

In accordance with GOST 31173-2003, there are 2 types of features that should be paid special attention to:

First of all, we are talking about the availability of documents that allow an organization to engage in the production of metal fire doors, that is, the availability of a license. Among other things, each door must have an appropriate quality certificate and an individual passport, which indicates the main characteristics of the product, acceptable temperature conditions and other parameters.

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If you study GOST 31173-2003 in more detail, you will notice that each fire door must have certain visual features. Let's consider them in more detail:

Mandatory design feature of a fire door	Note
Absence through holes and cracks	Checking this is easy enough. It is possible to provide a light difference in two adjacent rooms. If the gaps are visible, it means that the door has gaps and its quality no longer corresponds to that which should be in accordance with GOST
You should pay attention to the seal that runs along the perimeter between the frame and the metal door leaf	The seal should not have even small cracks, and be as elastic as possible to the touch.
An important role is played by the softness of the closer	for the most efficient, safe and comfortable use, the closer should move smoothly enough, but not require additional effort to function
Notice the awnings	As practice shows, many companies install awnings, but they completely forget that a new product does not always have a lubricant. Among other things, given the specifics of the metal door itself, the lubricant used for the hinges must also have fire-resistant characteristics and properties, that is, withstand higher temperatures.
Locking mechanism	Even a light “bite” in the castle is strictly not allowed. It should work as smoothly as possible and not require much effort when opening and closing. Otherwise, it can lead to extremely unpleasant consequences.

What is GOST R 53307-2009?

GOST R 53307-2009 is used when testing metal fire doors. It is he who guarantees that the product corresponds to the quality and is able to save not only property, but also human life from fire.

Those products that have successfully passed the tests and received the appropriate certificate have some important features, such as the highest fire resistance, which allows these metal doors to be installed both in offices, private homes, as well as in large enterprises. Among other things, in accordance with GOST R 53307-2009, all products have the following characteristics.

Unwanted penetration into the office or living space is provided by entrance doors made of steel, equipped with powerful locking devices around the entire perimeter of the door. The parameters and characteristics of such doors are regulated by GOST 31173-2003, which was put into effect in 2004.

The development of standards for metal doors is dictated by high requirements for a number of reasons: compliance with the parameters of doorways in construction, performance of security functions, insulating properties, their strength and a number of other parameters. Their observance in the manufacture is necessary for the consumer, otherwise they will not perform the required functions. GOST 31173-2003 gives a fairly wide range of manufacturing parameters from entrance doors indoors to secure doors in expensive houses and cottages. Steel doors are very popular in our country.

The standards are intended for serial and small-scale production, where it is possible to debug technological process in accordance with them, where there is control over their compliance with the use of appropriate methods and confirmation of test results in special centers accredited for the right to conduct them. In individual production, this is difficult to implement. Compliance with standards provides the consumer with the necessary consumer qualities.

Classification of metal doors GOST 31173 2003

Steel doors are classified according to various parameters: purpose, design, finish, operational and mechanical characteristics, security level. Such a classification allows the consumer to simply select a product with the required characteristics. It also allows certification of steel products.

The classification depends not only on its design features, but also on the configuration of the door block with locking mechanisms. For example, the security level depends on the strength of the block (M1, M2, M3), the complexity of the locks and locking mechanisms. Steel door blocks of the simplest design (strength class M3) are equipped with class III-IV locks (GOST 5089) and special locking mechanisms, and with class M2 they are equipped with multi-bolt locks on reinforced hinges.

Locks are fastened with screws through gaskets and brackets that press the lock to the leaf, equipped with threads. It is better not to use welding when installing locks, the canvas can lead, and the lock will not close. The size of the door leaf should not exceed 2200 mm in height and 1200 mm in width, and the weight should not exceed 250 kg.

steel door construction

The entire structure is welded from steel. The frame is welded from profiles, on which steel sheets are welded on both sides. The metal on the door leaf must be at least 1.8 mm thick. Profiles can be box-section, U-shaped or from a corner. In some cases, the frame can be reinforced with additional profiles inside it (multipliers), such as vertical arrangement, and horizontal mullions.

The frame is filled with basalt wool, foam plastic or other heat and sound insulating materials. To counteract the removal of the block from the hinges, special pins are installed, which are located in the area of ​​\u200b\u200bthe loops. They do not allow you to wring the door from the hinges and remove it. The pins are installed either in a box or in a web by welding or pressing.

When buying, the consumer has the right to choose the type of finish, material and color, however, GOST 31173-2003 defines reference samples. The choice of finishing materials according to GOST is very wide and varied: from natural leather to polymer coating. The main thing is that GOST determines the permissible coating quality parameters for each material, below which it is impossible to fall. Output control at the production appearance door is treated with special attention.

The main characteristics of metal doors

The main task of the door block is to provide protection against unauthorized entry into the room. Along with this task, the door must protect against the external environment in the form of cold air masses, as well as noise, and serve for a long time without changing the main characteristics. So, the door block should:

• isolate the transfer of heat or cold from the outside to the inside of the room;
• isolate sounds both from outside and from inside to outside;
• do not let air through;
• serve for a long time and with high quality;
• withstand static and dynamic loads on it.

It is these characteristics with quantitative estimates, given in GOST 31173 2003, that are an indicator of the quality of the produced blocks. According to these indicators, products are accepted at manufacturing plants.

Doors manufactured to the requirements of GOST 31173 2003

Ensuring the main security function is achieved by the composition of the characteristics of the door block (primarily strength) with locking mechanisms and locks, that is, one or another of its execution. The higher the strength class and the class of locking devices and locks, the higher the quotation for the performance of the door unit.

How to install a door block?

Metal doors are installed by the manufacturer's specialists, as special tools and materials are required that correspond to a particular product. In the event that it is built new house, then the project should describe the requirements for the size of the doorway, the expected loads and climatic conditions, and the requirements of building codes for the installation of this type of door.

Building codes require unconditional filling of the gaps between the door and the walls with insulating material, environmentally friendly and with a long service life. An important point when installing the product, it is necessary to place the door block and junction points in the structure in such a way that “cold bridges” and condensate do not form both inside the product and in the room.

The door unit is fixed in the wall opening through the mounting ears using anchors to a depth of 70-100 mm. The number of anchors should ensure that the block is fixed in the opening. The ears are recommended to be placed along the perimeter of the frame with a distance between them of no more than 700 mm. Before starting the installation of doors, it is necessary to make markings. IN doorway the central axis is determined along which the door is installed and the points of location of the ears and, accordingly, the places of fastening with anchors. Deviations of the door along the horizontal and vertical axes are controlled by plumb and level.

If the buyer decides to install the door himself, the company provides him with instructions for installing the unit, indicating all the technological operations for this procedure and the corresponding drawings of the main elements and junctions. The buyer also receives a description of all materials used, including metal, steel grade.

Manufacturer's Warranties

When buying a product, a passport is issued on the GOST door. In addition to dimensions and design features, it reflects a certificate of conformity, describes specifications mentioned earlier. And as a standard for all passports, the completeness of the product is included. The completeness of the door block includes locking devices, door hinges, the type of leaf finish, sealing gaskets, a closer and a door stop.

At the very end of the passport, the warranty period is indicated (at least three years from the date of purchase of the product), which is also indicated in the purchase agreement. In the contract, the manufacturer guarantees the buyer the preservation of all characteristics of the product, subject to the rules of transportation, installation of the product and the rules of operation. The document with which the buyer can dispute certain inconsistencies with the passport data of the product and the warranty period itself is a contract for the purchase of a door unit between the buyer and the manufacturer.

It should be noted that when self installation door block, the guarantee may not be received, since the manufacturer is not able to check the door installation technology. Therefore, we recommend using the services of the installation masters of the company that manufactured your door, or resorting to the services of certified teams of craftsmen.

In conclusion, it should be stated: the standardization of production always leads to an improvement in the quality of manufactured products, an increase in the service life of products, an increase in maintainability, a reduction in the cost of manufacturing a product, and a decrease in its price. Therefore, when choosing such a complex product as a metal door block, be guided by GOST 31173 2003.