ASTM E162 provides a convenient relative measure of the flame spread and heat evolution performance of building materials. The test has not enjoyed the widespread adoption of ASTM E84, perhaps due to misconceptions concerning its ability to connect to E84 flammability performance measurements. Nevertheless, when viewed within its own frame of reference, this test method provides a valid flammability assessment. ASTM E162 is currently applied to materials for rapid rail transit and light rail transit vehicles and military applications among others.
Vertical radiant panel test exposure configuration.
After ignition, the downward opposed flow flame spread rate and exhaust stack temperature rise are measured simultaneously to determine a flame spread factor and heat evolution factor which are combined into a single radiant panel index for assessing material flammability.