GB/T 32086-2015 in English

GB32086-2015: Interpretation of the Standard for Vertical Burning Characteristics of Certain Types of Automotive Interior Materials

GB32086-2015 "Technical Requirements and Test Methods for Vertical Burning Characteristics of Certain Types of Automotive Interior Materials" is a standard developed for the combustion characteristics test of M-class vehicle interior materials (such as curtains, sunshades and other internal suspension materials). The standard has been implemented since July 1, 2016, and was converted into a recommended standard on March 23, 2017, with the number changed to GB/T 32086-2015.

Background and Significance of Standard Development

With the rapid development of the automotive industry, the combustion characteristics of interior materials have become an important factor affecting vehicle safety. The development of GB32086-2015 aims to ensure the safety of certain types of automotive interior materials under vertical burning conditions and prevent fire accidents. This standard is mainly applicable to M3-class vehicles carrying more than 22 passengers, and provides unified technical requirements and test methods for manufacturers and testing agencies.

Technical Points Analysis

Detailed interpretation of the test method

GB32086-2015 standard specifies detailed test steps and requirements:

• Specimen fixation: The specimen size is 560mm±2mm in length, 170mm±2mm in width, and the thickness is the thickness of the part. The specimen needs to be pre-treated and placed in an environment with a temperature of 23℃±2℃ and a relative humidity of 50%±5% for at least 24 hours.
• Combustion test: Fix the specimen on the specimen fixing frame and ignite it with a gas lamp. The flame height should be adjusted to 40mm±2mm and form an angle of 30° with the plane where the specimen is located. Record the time from ignition to burning the mark line.
• Result calculation: Burning speed vi = 60 × (Di / ti), where Di is the flame burning distance and ti is the burning time. Take the maximum value as the test result and round it to the integer.

Standard implementation suggestions

To ensure the effective implementation of GB32086-2015 standard, it is recommended that:

1. Manufacturers: Strictly implement the combustion characteristics requirements during material procurement and production to ensure that interior materials meet the standard requirements.
2. Testing agencies: Equipped with test equipment that meets the standards, conduct strict tests on samples, and provide objective and accurate test reports.
3. Related units: Strengthen the promotion and implementation of standards, organize training for manufacturers and testing personnel, and improve the overall compliance level of the industry.