Draft Document - Respiratory protective devices - Methods of test and test equipment - Part 3: Determination of particle filter penetration (ISO 16900-3:2012); Text in German and English
文件草案-呼吸防护装置-试验方法和试验设备-第3部分:颗粒过滤器穿透力的测定(ISO 16900-3-2012);德语和英语文本