本欧洲标准描述了使用现有的标准化CEN或ISO测试和计算方法来确定反射绝缘产品的声明热性能的一套程序。本欧洲标准支持并不代替现有的CEN或ISO测试方法。 本欧洲标准适用于从一个或多个反射或低发射率表面以及任何相关空域的存在导出其所要求保护的热性能的一部分的任何绝热产品。它并不取代现有的已经实现的协调产品标准已经涵盖的产品的热性能的确定程序，而这些产品的申报价值并未具体包括由于面临的发射率而引起的任何索赔

This European Standard describes a set of procedures for using existing standardized CEN or ISO test and calculation methods to determine the declared thermal performance of reflective insulation products. This European Standard supports and does not replace existing CEN or ISO test methods. This European Standard applies to any thermal insulation product that derives a proportion of its claimed thermal properties from the presence of one or more reflective or low emissivity surfaces together with any associated airspace(s). It does not replace the existing procedures for the determination of the thermal performance of products already covered by an existing harmonized product standard where the declared value of these products does not specifically include any claims attributable to the emissivity of the facing.