American Society for Testing and Materials (ASTM). Current edition approved June 1, 2005. Published July 2005. Originally approved in 1971. Last previous edition approved in 2003 as E 430 – 97 (2003). 6 p. These test methods cover the measurement of the reflection characteristics responsible for the glossy appearance of high-gloss surfaces. Two test methods, A and B, are provided for evaluating such surface characteristics at specular angles of 30° and 20°, respectively. These test methods are not suitable for diffuse finish surfaces nor do they measure color, another appearance attribute.