ISO 13803:2014规定了测定涂层雾度的试验方法。该方法适用于平面不透明基材上非纹理涂层的雾度测量。 使用20°几何形状意味着该方法与ISO 2813中20°光泽度的测量密切相关。该方法的应用旨在改善高光泽表面之间的差异，例如在分散特性评估领域。

ISO 13803:2014 specifies a test method for determining the haze of coatings. The method is suitable for the haze measurement of non-textures coatings on plane, opaque substrates. The use of the 20° geometry means that the method is closely related to the measurement of gloss at 20° in ISO 2813. The application of this method is intended to give improved differentiation between high-gloss surfaces, for example in the field of assessment of dispersion characteristics.