DIN EN 60674-3-7-1999 电工用塑料薄膜的规范.第3部分:各种材料的规范.第7活页:电气绝缘用氟乙烯丙烯薄膜要求
Specification for plastic films for electrical purposes - Part 3: Specifications for individual materials; Sheet 7: Requirements for fluoroethylene-propylene (FEP) films used for electrical insulation (IEC 60674-3-7:1992); German version EN 60674-3-7:1998