Plastics piping systems for hot and cold water installations - Crosslinked polyethylene (PE-X) - Part 7: Guidance for the assessment of conformity (ISO/TS 15875-7:2018); German and English version CEN ISO/TS 15875-7:2018
冷热水装置用塑料管道系统.交联聚乙烯(PE-X).第7部分:合格评定指南(ISO/TS 15875-7-2018);德语和英语版本CEN ISO/TS 15875-7:2018