Needle-flame test

This method is used to test and assess the fire hazard presented by a plastic material using a needle flame.

The test determines the impact of a small flame on the test specimen. In particular, it calculates the severity, in other words the exposure time to the flame after which the material will just about meet the specified requirements. 

Summary of the test method:
The test specimen is arranged in a vertical position over tissue paper. A propane gas flame is applied to the edge as well as to the flat surface. The burning time, flammability and severity (exposure time) are determined for this flame application. The test is usually performed on parts or selected areas of these parts. 

Test setup: Edge flame application Test setup: Edge flame application Test setup: Surface flame application Test setup: Surface flame application