Specifies test requirements and procedures for aircraft equipment which may come into contact with flammable fluids and vapours. It also refers to normal and fault conditions that could occur in areas that are or may be subjected to flammable fluids and vapours during flight operations.
1.1 The flammable test fluids, vapours or gases referred to in this part simulate those normally used in conventional aircraft and which require oxygen for combustion ( mono-fuels are not included ).
1.2 This standard does not relate to potentially dangerous environments occurring as a result of leakage from goods carried on the aircraft as baggage or cargo.
1.3 In the order of testing, it is assumed that the article being tested has been subjected to the other environments of this standard (see 5), as appropriate, prior to this test, namely, altitude tests, vibration tests, etc.
IS 8252 Pt.21-1986 history
1987IS 8252 Pt.21-1986 Aircraft equipment Part 21 Explosion-proof environmental testing