ATPV vs. EBT: Arc Ratings Explained

ASTM Standard Definitions: ATPV (Arc Thermal Performance Value) is the incident energy on a material that results in a 50% probability that sufficient heat transfer through the specimen is predicted to cause the onset of second-degree burn injury based on the Stoll Curve, cal/cm².   Energy Breakopen Threshold (EBT) The incident energy on a material that results […]