This regulation applies to water transmission and distribution pipelines with water temperatures not lower than ℃ and not higher than 45℃. This procedure can be applied to water supply pipeline projects buried in corrosive soils such as acid and alkaline. For outdoor buried water supply pipeline projects built in special soil areas such as collapsible soil, expansive soil, permafrost, etc., the provisions of corresponding special standards should be followed.
CECS 17-2000 history
2000CECS 17-2000 Technical specification for buried unplasticized polyvinyl chloride(PVC-U)pipeline of water supply engineering