FAA Bunsen Burner Test Chamber

FAA-Vertical Bunsen Burner Test For Cabin And Cargo Compartment Materials Flammability Test Chamber

The FAA Bunsen Burner Test Chamber is used to assess the combustion behavior of aircraft interior and cargo compartment materials when exposed to a defined Bunsen burner flame. The test determines parameters such as flame spread, afterflame time, afterglow time, and burn length under controlled conditions.

This equipment is essential for evaluating materials used in aircraft cabins, including seat covers, carpets, wall panels, insulation, and other non-metallic components. It supports compliance with FAA FAR 25.853 and Chinese CCAR-25 §25.853 airworthiness requirements.

Technical Parameters

Professional Construction & Technical Precision

The FAA Bunsen Burner Test Chamber features a stainless steel combustion chamber with a heat-resistant tempered glass observation window, allowing safe and clear monitoring of the test process. The chamber structure is designed to provide stable airflow conditions during combustion testing.

The equipment is equipped with a precision Bunsen burner system, including a needle valve for accurate gas flow adjustment and electronic automatic ignition. High-quality components ensure consistent flame application and reliable timing measurements, which are critical for meeting the strict requirements of aviation material flammability standards.

Testing Principle

In the FAA Bunsen burner test, a defined flame from a Bunsen burner with a specified inner diameter is applied to the test specimen for a set duration. The test evaluates the material’s reaction to flame exposure by measuring parameters such as afterflame time, afterglow time, and burn length.

This method is used to determine the flammability characteristics of non-metallic materials intended for use in aircraft cabin and cargo compartments, helping ensure compliance with airworthiness safety requirements.

Common Error Mitigation

To obtain accurate and consistent test results, the following practices are recommended:

• Ensure the burner inner diameter and flame height are correctly set using the provided gauges before each test series.
• Properly condition test specimens according to the applicable standard requirements.
• Verify that the timing system is accurately calibrated for flame application and measurement periods.
• Maintain stable laboratory environmental conditions, particularly regarding temperature and humidity.
• Regularly inspect and clean the burner to prevent blockage or inconsistent flame behavior.
• Follow the specific specimen mounting and orientation requirements for each test angle.

Applications & Use Cases

The FAA Bunsen Burner Test Chamber enables aviation material suppliers and testing laboratories to evaluate the flammability performance of aircraft cabin and cargo compartment materials. It supports compliance with FAR 25.853 and related airworthiness standards, facilitating material qualification for aircraft applications.

• Aircraft interior material manufacturers — Conducting flammability qualification testing of cabin and cargo compartment materials, including textiles, plastics, composites, and insulation, to meet FAR 25.853 airworthiness requirements.
• Aviation testing laboratories — Performing FAR 25.853 and CCAR-25 compliance Bunsen burner testing for aircraft non-metallic materials, and issuing formal test reports for certification purposes.
• Aircraft manufacturers and OEMs — Evaluating and approving interior materials and components from suppliers through standardized vertical, horizontal, and angled flame testing to ensure cabin safety compliance.
• Certification bodies and airworthiness authorities — Assessing the flammability performance of non-metallic materials used in aircraft cabins and cargo compartments as part of type certification and continued airworthiness processes.
• Research institutions and material developers — Studying the combustion characteristics and flame behavior of new aviation-grade materials, flame-retardant coatings, and composite structures under Bunsen burner test conditions.

Key Advantages

This FAA Bunsen Burner Test Chamber is designed to meet FAA FAR 25.853 and CCAR-25 §25.853 requirements for aircraft cabin and cargo compartment materials. It supports vertical, horizontal, 45°, and 60° testing angles within a single chamber, providing flexibility for different flammability evaluation needs.

The equipment features a precision Bunsen burner with an inner diameter of 9.5 ± 0.5 mm, along with included 38 mm and 22 mm flame height gauges and an automatic ignition system. These features enable accurate and repeatable flame application. Its robust stainless steel chamber construction and stable gas flow regulation help laboratories achieve consistent test results while minimizing operator-dependent variation.