This standard specifies the product classification, raw materials, technical requirements, test methods, inspection rules, signs, packaging, transportation and storage of concrete and reinforced concrete drainage pipes. This standard applies to concrete pipes and reinforced concrete pipes formed by centrifugal, hanging roller, vibration and vertical extrusion. This standard applies to pipes for gravity flow pipes such as rainwater, sewage, water and farmland drainage and irrigation. Note: The production of concrete and reinforced concrete drainage pipes for other purposes can be negotiated by the supplier and the buyer and implemented with reference to this standard.