JIS K 7038:1998 Plastics piping systems -- Glass-reinforced thermosetting plastics (GRP) pipes -- Test method to prove the resistance to initial ring deflection
This standard specifies a method for evaluating the ability of glass fiber reinforced thermoset plastic (GRP) pipe to withstand specified initial vertical displacements without surface damage and/or structural failure.
JIS K 7038:1998 history
1998JIS K 7038:1998 Plastics piping systems -- Glass-reinforced thermosetting plastics (GRP) pipes -- Test method to prove the resistance to initial ring deflection