Jindal’s color comparator is designed as per ASTM D 1500.

Disc A ranges from 0.0, 0.5, 1.0, 1.5, 2.0, 2.5, 3.0, 3.5, and 4.0. Disc B range: 4.5, 5.0, 5.5, 6.0, 6.5, 7.0, 7.5, 8.0.

The instrument is supplied with a special comparator box with a 33-mm cell or test tube.