DIN EN 15384-1 E:2015 文件草案 包装 确定柔性铝管内涂层孔隙率的测试方法 第1部分:氯化钠测试
Draft Document - Packaging - Test method to determine the porosity of the internal coating of flexible aluminium tubes - Part 1: Sodium chloride test; German and English version prEN 15384-1:2015