GB/T 21238-2007 Glass fiber reinforced plastics mortar pipes
GB/T 21238-2007 Glass fiber reinforced plastics mortar pipes
Basic Information
Scope
This standard specifies the classification and marking, raw materials, requirements, test methods, inspection rules, marking, packaging, transportation, and storage of fiberglass-reinforced plastic sand-filled pipes (hereinafter referred to as FRPM pipes). This standard applies to FRPM pipes with a nominal diameter of 100 mm to 4,000 mm, a pressure rating of 0.1 MPa to 2.5 MPa, and a ring stiffness rating of 1,250 N/m2 to 10,000 N/m2, used in underground and aboveground water supply and drainage, water conservancy, and farmland irrigation projects. The maximum temperature of the medium shall not exceed 50℃. Non-sand-filled fiberglass-reinforced plastic pipes and FRPM pipes with nominal diameters, pressure ratings, and ring stiffness ratings outside the scope of this standard may also be used as reference.