Taiwan Provincial Standard of the People's Republic of China
Latest
CNS 11772-1986
Scope
This standard applies to the application of cement mortar inside steel pipes (1) (hereinafter referred to as pipes) specified in CNS 6568 [Coated steel pipes for tap water] and CNS 6666 [Fittings of coated steel pipes for tap water] in order to prevent steel pipes for tap water from rusting. Lining (hereinafter referred to as lining). Note (1) Before the pipe is lined, its inner surface shall not be coated.
CNS 11772-1986 history
1986CNS 11772-1986 Mortar Lining of Steel Pipes for Water Works