ISO 10456:2007规定了测定热均匀建筑材料和产品的声明热值和设计热值的方法，以及将一组条件下获得的值转换为另一组条件下有效值的程序。这些程序适用于-30°C和+60°C之间的设计环境温度。 ISO 10456:2007提供了温度和湿度的转换系数。这些系数适用于0°C和30°C之间的平均温度。 ISO 10456:2007还提供了表格形式的设计数据，用于建筑施工中常用的热均匀材料和产品的热湿传递计算。

ISO 10456:2007 specifies methods for the determination of declared and design thermal values for thermally homogeneous building materials and products, together with procedures to convert values obtained under one set of conditions to those valid for another set of conditions. These procedures are valid for design ambient temperatures between -30 °C and +60 °C. ISO 10456:2007 provides conversion coefficients for temperature and for moisture. These coefficients are valid for mean temperatures between 0 °C and 30 °C. ISO 10456:2007 also provides design data in tabular form for use in heat and moisture transfer calculations, for thermally homogeneous materials and products commonly used in building construction.