ISO 7432:2021
玻璃纤维增强热固性塑料管道和管配件. 检验设计带弹性体密封件的锁紧套筒连接件, 包括双插孔连接件的试验方法
Glass-reinforced thermosetting plastics (GRP) pipes and fittings - Test methods to prove the design of locked socket-and-spigot joints, including double-socket joints, with elastomeric seals