ISO 13787:2003确定了确定和验证用于建筑设备和工业设备绝缘的隔热材料和产品的温度的函数的声明热导率的程序。 资料性附录B给出了从测量值建立热导率曲线或表格的可选方法。 ISO 13787:2003不适用于建筑信封中使用的绝热产品。关于这些产品使用的程序，请参见ISO 10456“建筑材料和产品 - 确定声明和设计热值的程序”

ISO 13787:2003 establishes a procedure for the determination and verification of declared thermal conductivity, as a function of temperature, of thermal insulating materials and products used for the insulation of building equipment and industrial installations. Informative annex B gives an optional method for establishing the thermal conductivity curve or table from measured values. ISO 13787:2003 is not applicable to thermal insulating products used in building envelopes. For the procedures which are used for these products, see ISO 10456, "Building materials and products - Procedures for determining declared and design thermal values".