PurposeThistestdeterminethenon-combustibilityperformanceofhomogeneousproductsandsubstantialcomponentsofnon-homogeneousproducts(asubstantialcomponentisalayerwithamass/unitarea³1.0kg/m2orathickness³1.0mm).Thetestwasdevelopedtoassessproductswhich,whilstnotcompletelyinert,produceonlyaverylimitedamountofheatandflamewhenexposedtoatemperatureofapproximately750°C.Thistestisusedtoassessac***tructionproducttoclassesA1andA2,andflooringstoclassesA1FLandA2FL.NumberoftestspecimenAtleast5specimensaretested.Furthertestsmaybeneededforclassificationpurposes.)