本文介绍了非金属材料表面光泽的测量方法。着重以20°、45°、60°、85°镜面光泽法为基础,讨论它们的测量原理、方法、精度和修正等问题。並以采用45°镜面光泽法构成的SS—75型光电光泽计为例,说明这个方法在建筑材料‘三石’表面上光泽测量应用的情况。 This article describes the measurement of surface gloss of non-metallic materials. Focus on the 20 °, 45 °, 60 °, 85 ° specular gloss method based on discussing their measurement principles, methods, accuracy and correction and other issues. The SS-75 opto-electronic glossmeter using the 45 ° specular gloss method is taken as an example to illustrate the application of this method to the gloss measurement on the surface of “three stones” of building materials.