FAR.25.853 Department of transportation, Federal Aviation administration regulations for compartment interiors

Aircraft decoration should use non-combustible or flame retardant materials, as little as possible combustible, flammable materials. On the basis of ensuring the comfortable and beautiful interior decoration of the aircraft, pay attention to meet certain fire protection requirements. According to relevant military and aviation standards, aircraft manufacturers strictly control and select raw materials and components.

FAR 25.853 Standard for Fire Testing of Aeronautical materials

FAA.FAR25.853 (CCAR 25.853 of China) has made requirements on cabin materials and seat cushions respectively, and detailed regulations are described in Appendix F. Including ⅰ, ⅱ, ⅲ, ⅳ and ⅴ parts:

ⅰ refers to the requirements, methods and judgment of material ignition performance test. This part is the main experimental part of FAR 25.853: horizontal combustion, vertical combustion, 45 degree Angle combustion, 60 degree Angle combustion.

ⅱ is about the combination test of aircraft seat cushion. It should be pointed out that the test of aircraft seat cushion not only requires raw materials to meet the requirements of ⅰ in Appendix F, but also needs to pass the combination test of ⅱ to be considered as passing the test.

ⅲ is a test method for flame penetration resistance of cargo compartment gaskets, including cargo compartment sidewall and ceiling gaskets.

ⅳ is an experiment to determine the heat release rate of cabin materials under thermal radiation. Requirements: The average value of total heat dissipation does not exceed 65 kw.min /M2, and the peak heat release rate does not exceed 65 Kw.m2.

ⅴ is the test method for determining the smoke emission characteristics of materials. The smoke production is quantified according to the optical density reading, and the average Ds is not more than 200.

FAR 25.853 Fire test standard for aviation materials - Reference Standard:

ABD0031 Airbus Test Method (AITM)

ABD0031 Airbus Standard (AITM)

AITM 2.0002 Vertical combustion test;

AITM 2.0003 Horizontal combustion test;

AITM 2.0004 45° combustion test;

AITM 2.0005 60° combustion test;

AITM 2.0006 Heat release test;

AITM 2.0007 Smoke density test;

AITM 2.0008 Cable smoke density test;

AITM 2.0009 Seat cushion test;

AITM 3.0005 Smoke toxicity test;

BSS7238 Flame retardant fire test - Determination of smoke density

Test method for toxic gases produced by BSS7239 materials during combustion

HB 5469 Civil aircraft cabin combustion test for non-metallic materials

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From JJ2022