BS 7291-3-2001
建筑物中家用和供暖设施用的冷热水的热塑性管道与相关配件.交联聚乙烯管和相关配件规范
Thermoplastics pipes and associated fittings for hot and cold water for domestic purposes and heating installations in buildings - Specification for cross-linked polyethylene (PE-X) pipes and associated fittings