CJ/T 321-2010 in English

本标准规定了铝合金衬塑复合管材与管件的术语、定义、符号、缩略语、使用条件、材料、产品分类、要求、试验方法、检验规则和标志、包装、运输和贮存。
本标准适用于冷热水管道系统，包括工业与民用冷热水、热水采暖、中央空调及饮用水等铝合金衬塑复合管道系统；在考虑到材料的耐化学性和耐热性条件下，可用于各种化学流体及气体输送铝合金衬塑复合管道系统。

Scope

This standard specifies the terms, definitions, symbols, abbreviations, usage conditions, materials, product classifications, requirements, test methods, inspection rules, markings, packaging, transportation, and storage of aluminum alloy plastic-lined composite pipes and fittings. This standard applies to hot and cold water piping systems, including industrial and civil hot and cold water, hot water heating, central air conditioning, drinking water and other aluminum alloy lined plastic composite piping systems; taking into account the chemical resistance and heat resistance of the material , can be used in aluminum alloy plastic-lined composite pipe systems for transporting various chemical fluids and gases.