HTP heat transfer performance test apparatus for test methods ASTM F 2700 and ISO 17492.
ASTM F 2700 Unsteady-state heat transfer evaluation of flame resistant materials for clothing with continuous heating (used for NFPA 2112, par. 8.2 ) test
ISO 17492 Clothing for protection against heat and flame – Determination of heat transmission on exposure to both flame and radiant heat