DIN EN ISO 11114-5:2020
气瓶 气瓶和阀门材料与气体含量的相容性 第5部分:评估塑料内衬的测试方法(ISO/DIS 11114-5:2020)
Gas cylinders - Compatibility of cylinder and valve materials with gas contents - Part 5: Test methods for evaluating plastic liners (ISO/DIS 11114-5:2020); German and English version prEN ISO 11114-5:2020