Standard Colour Solution GY (Greenish Yellow) is used as a reference standard in visual color comparison tests for the quality control and analysis of pharmaceutical products chemicals and laboratory solutions.

Its purpose is to provide a standardized greenish yellow color reference that enables consistent and accurate evaluation of the color of test solutions in accordance with pharmacopeial testing procedures.

Standard Colour Solution GY (Greenish Yellow) is a prepared reference solution with a defined greenish yellow color intensity that is used as a visual comparison standard during color assessment to ensure consistency accuracy and compliance with established quality specifications.