This standard specifies the use conditions, technical requirements, test methods, inspection rules, marking, packaging and storage requirements for fixed conduit annular clamps (hereinafter referred to as clamps). This standard applies to the design, manufacture, testing and acceptance of clamps.
HB 7647-2004 history
2004HB 7647-2004 Specification for clamp loop fixed tube
1999HB 7647-1999 General specification for annular clamps for securing conduits