1CS91.120.10Q25中华人民共和国国家标准GB/T34005-2017管状绝热制品水蒸气透过性能试验方法Determination of water vapour transmission properties ofpreformed pipe insulation(ISO 12629:2011,Thermal insulating products for building equipment andindustrial installations-Determination of water vapour transmissionproperties of preformed pipe insulation,MOD)2017-07-12发布2018-06-01实施中华人民共和国国家质量监督检验检疫总局中国国家标准化管理委员会发布