CARPET FLAMMABILITY: AN OXYGEN INDEX MODIFICATION TO THE PILL TEST.

A simple, relatively inexpensive test method for determining the flammability of carpets has been devised based on the oxygen index concept and the timed buring tablet test. The combustion propensity of the carpet is determined by adjusting the proportion of oxygen in a mixed oxygen/nitrogen, constant total flow, supply fed into the test cabinet containing the carpet specimen. A methenamine tablet is used as a constant ignition source and rate of flame propagation is measured.