本文件根据包括太阳能保护装置和玻璃窗的材料的光谱透射数据，确定组合的太阳能总透射率和其他相关太阳光数据的详细方法。如果光谱数据不可用，则该方法可以适用于使用综合数据。 该方法适用于所有类型的平行于玻璃窗的太阳能保护装置，例如百叶窗，威尼斯玻璃或百叶帘。盲人可能位于内部，外部或封闭在玻璃窗之间。为了确定玻璃窗或盲组件吸收的太阳能，为了玻璃窗的垂直取向，允许在每个这些位置盲人通风。 盲构件材料可以是透明的，半透明的或不透明的，与已知的太阳能透射率和反射率的玻璃组件结合，并且具有已知的用于热辐射的辐射率。 该方法基于辐射的正常入射，并且不考虑材料的透射率或反射率的角度依赖性。被太阳能保护装置扩散的漫射照射或辐射被视为是直接的。卢浮宫或百叶窗被视为均质材料

This document specifies a detailed method, based on the spectral transmission data of the materials, comprising the solar protection devices and the glazing, to determine the total solar energy transmittance and other relevant solar-optical data of the combination. If spectral data are not available the methodology can be adapted to use in-tegrated data. The method is valid for all types of solar protection devices parallel to the glazing such as louvres, or venetian, or roller blinds. The blind may be located internally, externally, or enclosed between the panes of the glazing. Ventilation of the blind is allowed for in each of these positions in determining the solar energy absorbed by the glazing or blind components, for vertical orientation of the glazing. The blind component materials may be transparent, translucent or opaque, combined with glazing components with known solar transmittance and reflectance and with known emissivity for thermal radiation. The method is based on a normal incidence of radiation and does not take into account an angular dependence of transmittance or reflectance of the materials. Diffuse irradiation or radiation diffused by solar protection devices is treated as if it were direct. Louvres or venetian blinds are treated as homogenous materials by equivalent solar optical characteristics, which may depend on the angle of the incidence radiation. For situations outside the scope of this document; ISO 15099 covers a wider range of situations. The document also gives certain normalised situations, additional assumptions and necessary boundary conditions.