T/ZZB 1375-2019 Standard Length Wound Glass Fiber Reinforced Plastic Pipe Jacking Pipe
T/ZZB 1375-2019
Basic Information
Scope
Main technical content: This standard specifies the terms and definitions, product structure, classification and marking, basic requirements, technical requirements, test methods, inspection rules, marking, packaging, transportation, storage, factory certificates and technical documents, other matters, and quality commitments for glass fiber reinforced plastic top-pipes (hereinafter referred to as GRP top-pipes) with a fixed length. This standard applies to GRP top-pipes with a nominal diameter of 100 mm to 4000 mm, a pressure rating of 0.1 MPa to 3.2 MPa, a ring stiffness rating of 20000 N/m2 and above, and a manufacturing method of fixed-length winding. The maximum temperature of the medium does not exceed 50 °C. This standard applies to GRP top-pipes used in rainwater, sewage, water diversion, and other transmission pipes.