UL94 standard flammability testerWhat is UL 94 ASTM standard?The UL 94 standard is a flammability of plastic materials used in devices and appliances. It is published by Underwriters Laboratories (UL) and often referenced alongside ASTM (American Society for Testing and Materials) standards, specifically ASTM D635, ASTM D3801, and ASTM D4804, which are similar in nature.Difference between UL94 and CSAPurposeTo evaluate the flammability of plastic materials, ensuring they meet safety standards fo