This method is intended to evaluate the contribution to fire growth and smoke production under well ventilated conditions provided by a mattress, bed system etc. when subjected to a specified ignition source. Data describing the burning behaviour from ignition until all burning has ceased is obtained.
The heat release rate of the burning specimen is measured by an oxygen consumption technique. The hazard of reduced visibility is estimated by measuring the production of light obscuring smoke. The burning behaviour is visually documented by photographic and/or video recordings.
The amount of certain toxic gas species in the combustion gases can be optionally analyzed.