1.1 本规范涵盖了在内层和外层之间具有焊接铝管加强件的共挤聚乙烯复合压力管。内部和外部聚乙烯层通过熔融粘合剂结合到铝管上。包括聚乙烯-铝-聚乙烯（PE-AL-PE）管的命名系统、材料的要求和测试方法、组成管和成品管的尺寸和强度、附着力测试以及爆裂和持续压力性能。还给出了标记的要求和方法。本规范涵盖的管道适用于住宅和商业应用的饮用水分配系统、供水系统、地下灌溉系统、辐射板供暖系统、底板、融雪和融冰系统以及与复合管道和配件兼容的气体。 1.2 本规范仅涉及包含具有内部和外部聚乙烯层的焊接铝管的复合管。焊接铝管能够承受内部压力。由未焊接在一起的金属层和聚乙烯以外的塑料层组成的管道不在本规范的范围内。 1.3 符合本规范要求的管道用连接器规范见 附件A1 。 1.4 本规范不包括交联聚乙烯铝交联聚乙烯管（见规范 F1281美元 )。 1.5 以国际单位制表示的数值应视为标准。括号中给出的值仅供参考。 1.6 以下注意事项仅适用于试验方法部分，第节 9 ，本规范的: 本标准并非旨在解决与其使用相关的所有安全问题（如有）。 本标准的使用者有责任在使用前制定适当的安全、健康和环境实践，并确定监管限制的适用性。 1.7 本国际标准是根据世界贸易组织技术性贸易壁垒委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认的标准化原则制定的。

1.1 This specification covers a coextruded polyethylene composite pressure pipe with a welded aluminum tube reinforcement between the inner and outer layers. The inner and outer polyethylene layers are bonded to the aluminum tube by a melt adhesive. Included is a system of nomenclature for the polyethylene-aluminum-polyethylene (PE-AL-PE) pipes, the requirements and test methods for materials, the dimensions and strengths of the component tubes and finished pipe, adhesion tests, and the burst and sustained pressure performance. Also given are the requirements and methods of marking. The pipe covered by this specification is intended for use in potable water distribution systems for residential and commercial applications, water service, underground irrigation systems, and radient panel heating systems, baseboard, snow- and ice-melt systems, and gases that are compatible with composite pipe and fittings. 1.2 This specification relates only to composite pipes incorporating a welded aluminum tube having both internal and external polyethylene layers. The welded aluminium tube is capable of sustaining internal pressures. Pipes consisting of metallic layers not welded together and plastic layers other than polyethylene are outside the scope of this specification. 1.3 Specifications for connectors for use with pipe meeting the requirements of this specification are given in Annex A1 . 1.4 This specification excludes crosslinked polyethylene-aluminum-crosslinked polyethylene pipes (see Specification F1281 ). 1.5 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only. 1.6 The following precautionary caveat pertains only to the test methods portion, Section 9 , of this specification: This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.7 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.