细陶瓷(高级陶瓷、高级工业陶瓷).有透明衬底的陶瓷膜的透光系数的测定

[中文适用范围]： 本国际标准规定了测定透明涂层材料（例如用于显示装置的透明电极，其中将精细陶瓷薄膜涂覆在基板上）的可见光透射率的测试方法。 本国际标准不适用于故意着色、不均匀或非平行面的试件。 本国际标准不包括半透明介质。 [外文原描述]： ISO 20508:2003 specifies a test method for determining the visible light transmittance of a transparent coating material, e.g., the transparent electrode for display devices, in which a fine ceramic thin film is coated on to a substrate. ISO 20508:2003 is not applicable to deliberately coloured, uneven or non-parallel faced test pieces. A translucent medium is not included in this International Standard.