This document specifies the terms and definitions, symbols and abbreviations, materials, classification and marking, pipe structure and connection methods, technical requirements, test methods, inspection rules, signs, Transportation and storage. This document applies to high molecular weight high density polyethylene (HMWHDPE) double-wall corrugated pipes (hereinafter referred to as "pipes") used for buried drainage, sewage and communication sheathed pipes with temperatures below 40°C for a long time.
T/YNSX 5-2020 history
2020T/YNSX 5-2020 High Molecular Weight High Density Polyethylene (HMWHDPE) Double Wall Corrugated Pipe