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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