Determination of burning behaviour of interior materials in motor vehicles
Material
Our test laboratory performs testing in accordance with DIN 75200 using an accredited procedure. This standard specifies a standardized test method for determining the burning behavior of materials used in vehicle interiors, in particular the horizontal burning rate under exposure to a defined ignition flame. The aim of the test is to evaluate flammability and flame propagation characteristics in order to meet safety requirements for vehicle interiors.
The standard is applicable to a wide range of non-metallic materials such as plastics, textiles, leather, coated materials, and foams, which can be tested either individually or as part of composite systems.
Test principle and procedure
During testing according to DIN 75200, a standardized specimen is mounted horizontally in a U-shaped holder within a combustion chamber.
The free end of the specimen is exposed to a defined test flame for a specified duration (typically approx. 15 seconds). After removal of the flame, the burning behavior of the material is observed along a defined measurement distance.
The following parameters are recorded:
whether the material continues to burn or self-extinguishes
the rate at which the flame front propagates along the specimen
the distance traveled within a defined period of time
The burning rate (mm/min) of the test is calculated as the ratio of burned length to the time required and represents the key parameter of the test.
Additionally, different behaviors can be classified, such as self-extinguishing performance or complete burn-through of the specimen.
Significance of results
The values determined according to DIN 75200 provide a reliable basis for assessing the flammability and fire propagation of interior materials. They are an essential component of material approvals, quality control, and development testing in the automotive sector.
For detailed arrangements, please use the provided contact form, specifying the desired test(s) and, if applicable, the required execution type. We are happy to advise you, including on our extensive range of fire tests (e.g., the U.S. standard FMVSS 302).