ASTM D 6290 - 05 Standard Test Method for Color Determination of Plastic Pellets

American Society for Testing and Materials (ASTM). Current edition approved April 1, 2005. Published June 2005. Originally approved in 1998. Last previous edition approved in 1998 as D 6290 - 98. 5 p. This test method is intended primarily for the instrumental measurement of the degree of yellowness (or change of degree of yellowness) under daylight illumination of homogeneous, nonfluorescent, nearly-colorless transparent or nearlywhite translucent or opaque plastics. The measurement is made on pellets and based on tristimulus values obtained with a spectrophotometer or colorimeter.