This document specifies the terms and definitions, symbols, abbreviations, materials, markings, technical requirements, test methods, inspection rules and signs, packaging, transportation and storage of high-density polyethylene (HDPE) two-color composite stable pipes for water supply. This document is applicable to high-density polyethylene (HDPE) two-color composite steady-state pipes (hereinafter referred to as "pipes") for water supply with a nominal outer diameter of 16mm to 1000mm, a conveying water temperature not higher than 40°C, and a maximum operating pressure (MOP) not greater than 2.0MPa. ").
T/YNSX 1-2020 history
2020T/YNSX 1-2020 High-density polyethylene (HDPE) two-color composite steady-state pipe for water supply