BS 669-1:2022
用于燃气器具的柔性软管、端部配件和插座 用于燃烧第一类、第二类和第三类气体的家用电器的带状缠绕金属软管、盖子、端部配件和插座 规格
Flexible hoses, end fittings and sockets for gas burning appliances. Strip-wound metallic flexible hoses, covers, end fittings and sockets for domestic appliances burning 1st, 2nd and 3rd family gases. Specification