CJ/T 320-2009 in English

本标准规定了外层为高密度聚乙烯树脂、内层为超高分子量聚乙烯树脂的复合管材的材料、产品规格、要求、试验方法、检验规则、标志、包装、运输和贮存。
本标准适用于输送水、液体、浆体、粉体、颗粒状固体的管材。

Scope

This standard specifies the materials, product specifications, requirements, test methods, inspection rules, marking, packaging, transportation and inspection of composite pipes (hereinafter referred to as pipes) with an outer layer of high-density polyethylene resin and an inner layer of ultra-high molecular weight polyethylene resin (hereinafter referred to as pipes). Storage. This standard applies to pipes for transporting water, liquid, slurry, powder, and granular solids.