HG/T 5668-2019 "Spinning & weaving dyeing and finishing aids, determination of emulsification effect of degreasing agents" specifies a detailed test method for evaluating the emulsification effect of degreasing agents on oil agents in Spinning & weaving dyeing and finishing aids products. This standard is applicable to the evaluation of the emulsification effect of degreasing agents after treating oil agents under specific conditions. The effect of degreasing agents is judged by observing and comparing the emulsification status of the treated working fluid and the blank sample. During the test, industrial white oil and L-AN 46 oil agents that meet the regulations are used, and emulsification blue N indicators and chemical reagents are used to ensure the accuracy and Reliability of the measurement results. This method helps to ensure that Spinning & weaving products effectively remove oil during processing, improve product mass and processing efficiency.