Often, on-site test labs are fully equipped and qualified to perform different types of aircraft fire tests needed to demonstrate compliance with aircraft flammability regulations.
There is often confusion between the different categories of fire tests essentially defined as follows
• Fireproof is the ability to withstand the heat associated with fire at the highest level, to resist at least as much as steel of adequate size for the purpose for which they are used.
• Fire resistant is the ability to withstand the heat associated with fire at least as well as the aluminum alloy in a size appropriate to the purpose for which they are used.
• Flame resistant means not susceptible to combustion to the point of spreading a flame beyond safe limits after the ignition source has been removed.
• Flash resistant means not susceptible to severe burns if triggered.
These are general terms used to define tests. Some of these definitions allow for variations. For example, flame resistance refers to safety limits.
These limits vary depending on the material, or where and how a material is used, and this is reflected in the regulations, for example, fire performance in aircraft interiors FAA 14 CFR: Part 25 or Fire resistance in designated areas ISO 2685: 1998 Some tests are quite specific.
Since steel is considered fireproof and aluminum is fire resistant, it can already be assumed that the unfinished metal parts meet the flame and flame resistance tests. However, parts containing alloys, for example, require testing.
Companies that do are allowed to perform the following types of fire tests:
• Tests with vertical and horizontal Bunsen burners
• Test with Bunsen burner at 45 degrees
• 60 degree Bunsen burner test for wires and cables
• Oil burner test for aircraft seat cushions
• Fire containment test for waste compartments
Fire resistance test of the fuselage
Fire tests have shown us that burning aviation fuel can enter the cabin of an aircraft through air return grilles, seams, joints or window slots. The aluminum side panels also offer minimal fire resistance. FAA researchers are focusing on acoustic thermal insulation as a potentially more effective and practical means of achieving a fire barrier.
Environmental testing of airborne equipment.
All materials used in an aircraft cabin or cargo compartment must meet the applicable flammability requirements for that aircraft type. Such materials include, but are not limited to, interior upholstery, floor coverings, seat cushions and upholstery, seat belts, curtains, decorative furniture, upholstery, kitchen structure and furnishings, transparencies, stowage and baggage structures, parts thermoformed, and insulating materials.แอพพลิเคชั่นเว็บพนัน
When repairing or replacing the interior material of an aircraft, compliance with the applicable material flammability requirements must be certified.
The organization carrying out the repair or refurbishment must ensure compliance with the appropriate standards for the aircraft to be refurbished.
The minimum requirements for aircraft depend on the airworthiness category of the aircraft. Standards are periodically revised due to inadequate service history or new technologies. EASA FAR & JAR all provide certification standards.
Although these standards are mostly harmonized, not all flammability requirements are the same and the harmonization of changes to the standards occurred on different dates.