HG/T 5250-2017 "Determination of Spinning & weaving dyeing and finishing aids, ethylenediamine tetraacetate and diethylenetriamine pentaacetate" specifies the method for the determination of ethylenediamine tetraacetate (EDTA) and its salts and diethylenetriamine pentaacetate (DTPA) and its salts in Spinning & weaving dyeing and finishing aids by gas chromatograph Mass spectrometry. This standard applies to the accurate determination of EDTA and DTPA in Spinning & weaving dyeing and finishing aids products by gas chromatograph Mass spectrometry. The samples are acidified and reacted with ethanol to form esters and then extracted with n-hexane. Qualitative and quantitative analysis is carried out by gas chromatograph mass spectrometry. This method ensures accurate determination of EDTA and DTPA, helping the Spinning & Weaving industry control product mass and environmental impacts during production.