Colour variations of transparent liquids such as varnishes, solvents, resins, tensides, oils etc., may be caused by contamination or impurities, process inconsistencies, or excessive weathering. Therefore, reliable and accurate measurements are essential to ensure consistent production standards.
Standards
ISO 4630
Technical Specification
BGD 425 Gardner Color Comparator with C Illuminant is used to test the color of drying fatty oil, varnish, fatty acid, polymerized fatty acids and resin. It complies with the ISO 4630 standard.
Main Technical Parameters
Glass tubes: Colorless and transparent with inner diameter is 10.65 ± 0.025mm, the external diameter is 12.5 mm and the length is 114 mm
Working Standard: 18 tubes of colored fluids which are prepared according with ISO 4630
Illuminant: Its energy of spectra is similar with C light resource of CIE. The beam comes through working standard color and sample.
The environment is neutral in color, the two working standard colors and one sample are within eye shot.
Ordering Information: BGD 425 - Gardner Color Comparator with C Illuminant