This document specifies the terms and definitions, symbols and abbreviations, classification and labeling, materials, technical requirements, test methods, inspection rules, marking, transportation and storage of high molecular weight high-density polyethylene (HMWHDPE) inspection wells. This document applies to high molecular weight high-density polyethylene (HMWHDPE) inspection wells (hereinafter referred to as "inspection wells") made of high molecular weight high-density polyethylene (HMWHDPE) with a maximum depth of 7m and a long-term water temperature below 40°C.
T/YNSX 9-2020 history
2020T/YNSX 9-2020 High Molecular Weight High Density Polyethylene (HMWHDPE) Inspection Well