Gardner (ASTM D1544, D6166) Colour Certified Reference Materials and Standards

Gardner (ASTM D1544, D6166) Colour Reference Standards are for routine calibration of colour measuring instruments and verification of test data. These colour standards are dual UKAS certified to the International Standards ISO/IEC 17025 and ISO 17034. Gardner (ASTM D1544, D6166) Colour Reference Standards are typically used in, but not limited to, the analysis of drying oils, varnishes, fatty acids, polymerized fatty acids, and resin solutions.

Determination of the colour of is used for manufacturing control purposes and is an important quality characteristic because the colour is readily observed by the user of the product. A variation outside the colour range specifications of a product may indicate possible contamination.