BS EN 60674-3-2-1995 电气用塑料薄膜规范.各型材料规范.电气绝缘用平衡双取向聚对苯二甲酸乙酯薄膜要求
Specification for plastic films for electrical purposes - Specifications for individual materials - Requirements for balanced biaxially oriented polyethylene terephthalate (PET) films used for electrical insulation