GB/T 21238-2007

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.