FMVSS 302 Automotive Materials Horizontal Combustion Tester For Motor Vehicle Interiors

FMVSS 302 Automotive Materials Horizontal Combustion Tester Introduction:

This test equipment is designed and manufactured according to the relevant provisions of FMVSS 302 and ISO3795 standards. It is suitable for the horizontal combustion test of interior materials of automobiles (sedans, multi-purpose passenger vehicles, trucks and buses). The automobile interior material combustion tester is composed of the test part and the control part, and adopts an integrated design, which is convenient for on-site installation and commissioning. The control system has a high degree of automation and has an automatic ignition function. The temperature and time are digitally displayed, which is convenient for observation and recording, and is stable and reliable to use.

FMVSS 302 Automotive Materials Horizontal Combustion Tester Standards:

• FMVSS 302: Federal Motor Vehicle Safety Standard 302

• ISO 3795

Other relevant standards

SAE J369: 2003 --- American Society of Mechanical Engineers

HES D6003-99 --- Honda Motor

NES M0094: 2003 --- Nissan;

ES-X60410: 2001 ---- Mitsubishi Motors

TRANS / WP29 / 78 / Rev.1: 1997 Appendix 4 ---- EU

TL 1010: 1997 --- Volkswagen;

GS 97038-2003 ---- BMW;

GM 9070P: 1996 --- General Motors

FMVSS 302 Automotive Materials Horizontal Combustion Tester Test principle and parameters:

The test adopts the horizontal combustion method, using a Bunsen burner to generate a constant flame (height 38mm) to ignite a horizontally fixed sample, and measure the relationship between the flame spread distance and time. Key parameters include:
1. Flame application time: 15 seconds standard burning time
2. Burning rate calculation: calculated based on the time difference between the flame front passing the 100mm and 200mm marks
3. Self-extinguishing characteristic evaluation: record the continuous burning time after the flame leaves the sample

FMVSS 302 Automotive Materials Horizontal Combustion Tester Specification:

FMVSS 302 Automotive Materials Horizontal Combustion Tester Main Feature:

1. Advanced industrial appearance and control design;

2. Model 304 Stainless steel structure housing; bottom ventilation hole spacing: horizontal 63.5mm, longitudinal 127mm.

3. The number of ventilation holes: 10, diameter 19mm.

4. The inner diameter of the burner is Φ9.5mm. Blowtorch top center at the free end of the specimen from 19mm

6. Record time can be adjusted from 0 to 9999 seconds.

7. Equipped with stainless steel sample holder and sample templates;

8. The combustion chamber is constructed using a steel ruler with a precision of 1mm. The combustion length can be easily read without removing the sample for measurement.

9. The imported Bunsen burner from USA Humboldt, combustion flame higher precision, adjustment range 20mm ~ 100mm.

10. The flame measuring device; flame height 38mm

11. A high degree of test automation, test data accurate, easy to operate

Programmable Logic Controller (PLC) + touch screen plus automatic control system

1. Automatic timing, automatic ignition, ignition abnormal protection;

2. 6 sample test data is saved;

3. Monitoring the experimental data, query six samples of experimental data, and query alarm contents.

FMVSS 302 Automotive Materials Horizontal Combustion Tester result determination and grading standards:

1. Qualified determination:
- Average burning rate ≤102mm/min
- Any sample can be directly judged as qualified when the burning distance does not exceed 51mm (2 inches)

2. Grading extension (some manufacturers adopt higher standards):
- Grade A: Burning rate ≤50mm/min (aviation material standard)
- Grade B: 51-100mm/min (mainstream automobile qualified line)
- Grade C: >102mm/min (unqualified material)