ASTM F2731
Standard Test Method for Measuring the Transmitted and Stored Energy of Firefighter Protective Clothing Systems
This test method provides procedures to measure transmitted and stored energy that occurs in firefighter protective clothing material systems as the result of exposure to prolonged, relatively low levels of radiant heat. The test apparatus applies a constant radiant heat load to the surface of the test specimen for a fixed duration followed by a static compressive load to the specimen. Heat flow through the specimen is recorded during exposure and compression and used with a skin burn model to predict time to second degree burn injury.