Civil Aviation Aircraft Interior Non-metallic Materials Flame Retardant Property Tester
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
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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