1.1 This test method covers the measurement of the specular gloss of non-metallic painted surfaces only, such as painted metal, plastic, and wood. 1.2 This test method is designed to measure the specular gloss of surfaces at specified angles of illumination and view.
9.1 No calculations are required; the gloss value is read directly from the instrument.
8.1 The glossmeter is positioned on the test specimen, ensuring that the light source and receptor are at the specified angles (usually 20°, 60°, or 85°). 8.2 The gloss value is read directly from the glossmeter.
7.1 The test specimen shall be a flat, non-metallic painted surface.
6.1 The glossmeter shall be calibrated using a certified reference standard.