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

Its purpose is to provide a standardized brown color reference that enables consistent and accurate assessment of the color of test solutions in accordance with established pharmacopeial methods.

Standard Colour Solution B (Brown) is a prepared reference solution with a defined brown color intensity that is used as a calibration and comparison standard during visual color evaluation to ensure uniformity and compliance with quality specifications.