scope:

This International Standard specifies a small-scale laboratory screening procedure for comparing the relative horizontal burning characteristics of small specimens of cellular plastic and cellular rubber materials exposed to a low energy source of heat. It is intended only for the purpose of assessing quickly and simply the horizontal burning characteristics of small specimens of the materials as such, i.e. considered without reference to the environmental conditions under which the materials, or products made from them, may be used. In consequence it is not possible to establish a correlation between the results of this test and the performance of such materials or products under actual service conditions. The test is restricted to specimens of thickness greater than 5 mm. Results of tests on specimens of different thickness are not comparable.