Explanation

Also known as residual flame. Under the specified experimental conditions, after the ignition source of materials is removed, the flame combustion continuously, that is, the luminescence gas phase combustion. residual flame is one of the important indicators to evaluate the combustion performance of materials. For example, in the horizontal combustion test, vertical combustion test, and incandescent bar test, after flame is the main criterion to evaluate the combustion performance. In the oxygen index test method, after flame is also the main sign to determine the oxygen concentration.

Classification