BS EN ISO 6504-1-1983 涂料和清漆.遮盖力的测定.白色和浅色涂料用库比尔凯-芒克法

标准号：BS EN ISO 6504-1-1983
中文标准名称：涂料和清漆.遮盖力的测定.白色和浅色涂料用库比尔凯-芒克法
英文标准名称：Paints and varnishes - Determination of hiding power - Kubelka-Munk method for white and light-coloured paints
标准类型：G50
发布日期：1983/12/30 12:00:00
实施日期：1983/12/30 12:00:00
中国标准分类号：G50
国际标准分类号：87.040
适用范围：Specifies a method to be used for determining the spreading rate necessary to give a contrast ratio of 98 % of coating materials. The method is restricted to paint films having the tri-stimulus value of Y 70; it is not applicable to fluorescent or metallic paint materials. The principle of the method is based on the Kubelka and Munk equations relating the scattering and absorption coefficients of pigmented films to their colour and opacity. For the determination of hiding power, both the reflectance of a film of thickness, t, on a black background and the reflectivity are required.