I. Applicability Scope
This system applies to combustion performance testing of non-metallic materials in aircraft cabins:
- 1.1 Crew/Passenger Cabin Areas:
Including ceiling panels, interior walls, partitions, galley structures, cabinet linings, floor coverings, textiles (curtains/coverings), seat cushions, padding, coated fabrics (decorative/non-decorative), leather products, trays/kitchen equipment, electrical conduits, air ducts, joints/edge covers, B/E class cargo compartment linings, B/C/D/E class cargo floor panels, cargo covers, transparent enclosures, molded/thermoformed components, duct joints/edge trims, etc.
- 1.2 Non-crew/Passenger Cargo Areas:
Insulation blankets, cargo protective covers, tie-down equipment (including containers, ULDs) for each cargo compartment.
II. Compliance Standards
- FAR25.853 (FAA Airworthiness Standards for Transport Category Aircraft)
- CCAR-25-R4.853 (Chinese Civil Aviation Regulations Appendix F Part I)
- HB5469-2014 (Civil Aircraft Cabin Non-metallic Material Combustion Test Method)
- HB5470-2014 (Civil Aircraft Cabin Non-metallic Material Combustion Performance Requirements)
- RTCA/DO-160G Section G26.6.2/G26.6.3/G26.6.4 (Environmental Test Procedures)
III. Key Performance Parameters
| Parameter Category |
Specifications |
| Test Types |
Equipment Composition |
Combustion Chamber |
3.1 Test Types
- Vertical burning test
- Horizontal burning test
- 45° inclination burning test
- 60° inclination burning test (dedicated chamber)
3.2 Equipment Composition
- Modular system comprising:
- Combustion chamber
- Control system
- Test fixtures
3.3 Combustion Chamber
- Multi-functional chamber with shared structure for vertical/horizontal/45° tests
- Independent 60° test chamber
- Tempered glass observation window (front panel)
3.4 Burner System
- Bunsen burner configuration:
- Nozzle ID: Ф9.5±0.1mm
- Vapor nozzle: Ф0.9±0.03mm
- Air inlet height: 100±10mm
- Dual burners with 0°/45°/60°/90° adjustable angles
- Flame height adjustment: 20-100mm (test-dependent)
3.5 Timing System
- Multi-phase timing (burning/drip flame/smothering phases)
- 0.1s accuracy with 99.99h max range
3.6 Measurement Systems
| Component |
Specification |
| Caliper |
1.0mm resolution |
| Thermocouple |
K-type, 1.2-1.5mm diameter |
| Temperature Meter |
0-1000°C range, 1°C resolution |
| Stopwatch |
0.1s precision (backup) |
3.7 Fixture System
- Stainless steel fixtures with orientations:
- Horizontal test frame
- Vertical test frame
- 45°/60° inclined frames
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