GB/T 5540-2017 in English

This standard specifies a method for determining the dispersibility of disperse dyes using the double-layer filter paper filtration technique. It outlines the necessary apparatus, reagents, and procedures for conducting the test. The method involves preparing a dye solution and filtering it through a double-layer filter paper to assess the degree of dispersion. The results obtained from this test can be used to evaluate the quality and performance of disperse dyes in various applications. The standard provides detailed instructions on sample preparation, test conditions, and the calculation of results. It is applicable to disperse dyes used in textile dyeing and related industries. The procedure ensures consistency and reliability in the measurement of dispersibility, facilitating comparison between different dye products. The standard is intended for use by manufacturers, testing laboratories, and other organizations involved in the production and evaluation of disperse dyes.