2024-03-27

FAR 25.853 Aircraft material combustion performance test-60° combustion test

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Material Flame Retardant Test, Fire Test Far25.853 - Standard Name

Far25.853: Fire Protection for compartment interior
Far25.853: Fire Protection of Aircraft Interior Materials - Flame Retardant and Fire Test

material combustion performance test FAR25.853 - 60° combustion test

FAR25.853 60° combustion test – Introduction

The ignition source for this test is also the same as the horizontal burning test. The test is conducted in a combustion chamber with an open door, or in a test chamber of 300mm×300mm×600mm (height) with the top and sides open. Aviation insulators, electrical conductors and cables should be tested by this test.

FAR25.853 60° combustion test - test method

There are three specimens for the test, counting from the place where the fire source is applied, and markings on the head and tail ends. The specimen is placed at an angle of 60°. Combustion test with ignition source at the same level. Apply flame time.

Test the following items:

- Burning length

- Open burning time

- Droplet self-extinguishing time

Later, some additional tests were added to FAR25, which put forward more stringent fire protection requirements for materials and components used in aircraft. Such as seat cushion fire resistance test, flame penetration test of cargo hold and luggage compartment lining materials, OSU heat release test and NBS smoke generation test, etc.

material flame retardant testing, fire testing – other relevant standards

standard: ABD 0031 - airbus fire testing – flame, smoke and toxicity
standard smoke test: BSS7238 fire testing to smoke density
standard toxicity test: BSS7239 fire testing to toxicity
standard smoke density: ASTM E 662 fire testing to Smoke Density

Far 25.853 Test Method – Combustion Performance Test

Vertical burning test is conducted in accordance with 14 FAR 25.853 b(4)), (App. F to part 25 part I § (a), 12-second vertical burning test and 60-second vertical burning test
density test performed in accordance with 14 FAR 25.853 (d), (App. F to part 25, part V)
Combustion heat release test is conducted in accordance with 14 FAR 25.853 (d), Appendix F, Part IV
seat in accordance with 14 FAR 25.853 (c, App.F to part II)
Horizontal combustion test performed in accordance with 14 FAR 25.853 b(2,3), (App. F to part 25 part I § (a),(1)
rack fire test is conducted in accordance with 14 FAR 25.855 (App. F to part III)
45° combustion test 14 FAR 25.853 (b), (App. F to part 25, part I § (6)) performed

Tag: FAR 25.853 Aircraft material combustion performance test-60° combustion test

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