Radiant heat resistance test apparatus (RPP) for test methods ASTM F 1939, ISO 6942, and for testing fire shelters used in wildland firefighting.
ASTM F 1939 – 2015 Radiant heat resistance of flame resistant clothing materials with continuous heating
ISO 6942 – 2002 Protective clothing – Protection against heat and fire – Method of test: Evaluation of materials and material assemblies when exposed to a source of radiant heat