What is the classification standard of fire doors?

Chapters 5 and 7.2 of this standard are mandatory clauses, and the rest are recommended clauses.

This standard replaces GB12955-1991steel fire doors and GB14101993 wood fire doors.

Compared with GB12955-1991,GB141-1993, the main changes of this standard are as follows:

-Added the classification of fire doors by materials (see 4.1);

—— The classification of fire resistance rating of fire doors has been changed from original A, B and C grades to thermal insulation fire doors (Grade A), local thermal insulation fire doors (Grade B) and non-thermal insulation fire doors (Grade B) in this edition (GB12955-1914.3, GB 655438) 4.4.

-The requirements for materials used for fire doors are more comprehensive and specific. For materials other than metallic materials, the requirements for the combustion performance and the toxicity of combustion smoke are increased (GB12955-1991410/-1938. This version 5.2);

-Delete the requirements for wind pressure deformation resistance, air permeability resistance and rain water permeability resistance of wood fire doors used as building exterior doors;

-The performance requirements for fire locks are more specific (this edition GB12955-1991.5.1.3, GB141-1993.

-The performance requirements for fireproof hinges (hinges) are more specific (GB/KOOC-0/2955-/KOOC-0/99/KOOC-0/.3 and 5./KOOC-0/.4, GB/KOOC-0/4/KOOC-0/0/KOOC in this edition)

-The performance requirements of the door closing device are more specific (this edition GB12955-1991.5.1.3, GB14101-/KLOC-0.

-The requirements for fire-proof glass are more specific (this edition GB12955-19915.10.3, GB14101-/KLOC.

-The quality requirements and inspection methods of fire door leaves have been increased (see 5.5 and 6.6);

-Requirements and test methods for the width and curvature of door leaves have been increased (see 5.7 and 6.8.3);

-Requirements and inspection methods for the clearance between the door leaf and the door frame have been added (see 5.8.2.6, 6.9.3);

-Requirements and test methods for the flexibility of fire doors have been added (see 5.9 and 6.10);

-Requirements and test methods for the reliability of fire doors have been added (see 5. 10 and 6.11);

-Improved the testing method for the twist of fire doors (GB14101-1993, 6.2; 6.8.2 of this version);

-The measurement method of the lap size between the door leaf and the door frame has been added (see 6.9.1);

-added judgment criteria (see 7.2.4);

-Added normative appendix A (see appendix A);

-Added normative appendix B (see appendix B);

-Added normative appendix C (see appendix C);

-Added normative appendix D (see appendix D).

Appendices A to D of this standard are normative appendices.

This standard was put forward by the Ministry of Public Security of the People's Republic of China.

This standard is under the jurisdiction of the Eighth Technical Committee of the National Fire Standardization Technical Committee (SAC/TC 1 13/SC8).

Drafting unit of this standard: tianjin fire Research Institute of the Ministry of Public Security.

Drafting units of this standard: Shenzhen Landun Industrial Co., Ltd., Shenyang Qiangdun Fire Door Co., Ltd. and Shenzhen Pengjilong Electrical Security Unit.

Co., Ltd., Chongqing Maxim Mei Sen Door Industry Co., Ltd., Guangdong Jingang Glass Technology Co., Ltd., Tianjin Mingmen Fireproof Building Materials Industry.

Beijing Guanghua Anfuye Doors and Windows Co., Ltd. and Zhejiang Tangmen Metal Structure Co., Ltd. The main drafters of this standard are Zhao Huali, Huang Wei, Li Bo, Zhang Xianghui, Ji Xiang 'an, Lu, Xia Mingxian, Zhang Minggang, Ji Chunchuan and Tang Junlie.

The previous editions replaced by this standard are as follows:

-GB 12955- 199 1；

-GB 14 10 1- 1993 .

Please note that some contents of this standard may involve patents. The publisher of this standard is not responsible for identifying these patents.

reference standard

The clauses in the following documents become the clauses of this standard by reference. All subsequent modifications (excluding errata) or revisions of dated reference documents are not applicable to this standard. However, parties who have reached an agreement according to this standard are encouraged to study whether the latest versions of these documents can be used. For undated reference documents, the latest edition is applicable to this standard.

GB/T708 Dimensions, shapes, weights and allowable deviations of cold-rolled steel plates and strips

GB/T709 Dimensions, shapes, weights and allowable deviations of hot rolled steel plates and strips

GB/T2828. 1 counting sampling inspection procedures part 1: batch inspection sampling scheme for AQL retrieval.

(GB/T2828. 1-2003，IDT ISO2859 1: 1999)

GB/T4823- 1995 sawn timber defects (eqvISO 1029: 1974)

GB/T5823- 1986 terminology of building doors and windows

GB/T5824 series dimensions of building doors and windows.

GB/T5907- 1986 Basic fire-fighting terms Part I

GB/T6388 transport packaging receipt mark

Test method for fire resistance of doors and shutters

GB8624-2006 Classification of Combustion Performance of Building Materials and Products

Test method for flame retardancy of building materials

GB9969. 1 general instructions for the use of industrial products

Logo GB/T 13306

General provisions of GB/T 14436 industrial product guarantee documents

GB 15763. 1 safety glass for building fire-proof glass 38+0.

GB 16807 fireproof expansion seal

Classification of toxic hazards of smoke-producing substances in GB/T20285-2006

GA93 fire door closer

JG/T 122-2000 Building Wooden Doors and Windows

QB/T2474 marble mortise lock