The main contents of the standard include: This standard specifies the product classification, requirements, test methods, inspection rules, packaging, marking, transportation and storage of polypropylene flame-retardant Mylar films for lithium batteries; technical requirements include appearance, size, curvature, Physical properties, flame retardant properties, electrical properties, surface resistivity, roughness, and harmful substance limit requirements.
T/WS 0004-2021 history
2021T/WS 0004-2021 Polypropylene flame retardant Mylar film for lithium battery