The ASTM D523-2014 (2018) standard specifies a method for the measurement of specular gloss of Non-metallic samples for 60 °, 20 ° and 85 ° Glossiness Meter geometries. The gloss grade is assessed by comparing the specular reflectance of the specimen to the Black Glass standard, which correlates with visual observations. Measurement results are influenced by the surface refractive index of the specimen, and specimens with similar surface refractive indexes are often compared. The standard also addresses surface Appearance Miscellaneous visual characteristics, such as reflection image sharpness and reflection haze, which provide an instrumental scale for the evaluation of coating specimens, consistent with visual assessments.
| Status | Active |
|---|---|
| CCS | (G31) 合成树脂、塑料基础标准与通用方法 | ICS | (83.140.01) 橡胶和塑料制品综合 |
| Release Date | 2018-05-01 00:00:00 | Implementation Date | 2018-05-01 00:00:00 |