Fire test center will provide Far 25.853 fire test to Aircraft Material
Far.25.853 Fire Test to Aircraft Material
> Far 25.853: Fire Protection for compartment interior
Far.25.853 Fire Test to Aircraft Material － 45° Flammability Test
> 45° flammability test
45° flammability test and vertical flammability test will be applied to components which were used for hold and baggage. The ignition resource of 45° flammability test is same to that of horizontal flammability test. The test will be carried out in a small chamber without ventilation and 3 results will be record.
> 45° flammability test－Method
Forty five degree test. A minimum of three specimens must be tested and the results averaged. The specimens must be supported at an angle of 45° to a horizontal surface. The exposed surface when installed in the aircraft must be face down for the test. The specimens must be exposed to a Bunsen or Tirrill burner with a nominal3/8-inch 1.D. tube adjusted to give a flame of 1 1/2inches in height. The minimum flame temperature measured by a calibrated thermocouple pyrometer in the center of the flame must be 1550 °F. Suitable precautions must be taken to avoid drafts. The flame must be applied for 30 seconds with one-third contacting the material at the center of the specimen and then removed. Flame time, glow time, and whether the flame penetrates (passes through) the specimen must be recorded.
Fire Test to aircraft material – Standards List
> Airbus standard: ABD 0031 - airbus fire testing – flame, smoke and toxicity
> Boeing Standard: BSS 7238 fire testing to smoke density
> Boeing Standard: BSS 7239 fire testing to toxicity
> ASTM Standard: ASTM E 662 fire testing to Smoke Density
Far 25.853 Fire test to aircraft material – Test method
> Vertical flammability test: 14 FAR 25.853 b(4)), (App. F to part 25 part I § (a)
> Smoke Density Test: 14 FAR 25.853 (d), (App. F to part 25, part V)
> Heat Release Test: 14 FAR 25.853 (d), Appendix F, Part IV
> Seat Test: 14 FAR 25.853 (c, App.F to part II)
> Horizontal Test: 14 FAR 25.853 b(2,3), (App. F to part 25 part I § (a),(1)
> 45° flammability test: 14 FAR 25.853 (b), (App. F to part 25, part I § (6))
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