标准编号：ISO 21003-5:2008
中文名称：建筑物内热水和冷水装置用多层管道系统 第5部分：系统用途的适用性
英文名称：Multilayer piping systems for hot and cold water installations inside buildings — Part 5: Fitness for purpose of the system
发布日期：2008-07
标准范围
This part ef ISO 21003 specifies the characteristics for the fitness for purpose of multilayer piping systemsintended to be used for hot and cold water installations inside buildings for the conveyance ef water --whether or not the water is intended for human consumption (domestic systems) or for heating systems --under specified design pressures and temperatures appropriate to the class of application (see Table 1 ofISO 21003:2008)It also specifies the test parameters for the test methods referred to in this part of ISO 21003ISO 21003 is a reference product standard It is applicable to multilayer pipes, fittings, their joints, and also tojoints with components made of other plastics and non-plastics materials intended to be used for hot and coldwater installations. This partof ISO 21003 is intended for use only in conjunction with all the other parts ofISO 21003ISO 21003 covers a range of service conditions (application classes) and design pressures It is not applicablefor values of design temperature, T<(DPWN)D>, maximum design temperature, T<(DPWN)max>, and malfunction temperature, T<(DPWN)mal>,in excess of those in Table 1 of I SO 21003-1:2008NOTE 1 It is the responsibility of the purchaser or specifier to make the appropriate selections from these aspects,taking into account their particularequirements and any relevant national regulations and installation practices or codesThe polymeric materials used for the stress-designed layers are the following: polybutylene (PB), polyethyleneof raised temperature resistance (PE-RT), crosslinked polyethylene (PE-X), polypropylene (PP) andchlorinated poly(vinyl chloride) (PVC-C).The PE-X used shall be fully cresslinked and shall comply with the requirements of the relevant referenceproduct standard (ISO 15875).NOTE 2 For the purposes of this ISO 21003, crosslinked polyethylene (PE-X) as well as adhesives are considered asthermoplastic materials
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