The personnel using this document should have practical experience in formal laboratory work, because the document does not cover all potential safety issues, and the user needs to take appropriate safety and health measures to ensure compliance with relevant national regulations. The document stipulates the gas chromatograph-mass spectrometry (GC/MS) determination method of 24 phthalic acid lipids in Spinning & weaving dyeing and finishing auxiliary products. It is suitable for the determination of phthalic formic acid esters in various categories of Spinning & weaving dyeing and finishing auxiliary products. The specific substance names are listed in Appendix A. In the normative reference document, the specifications and test methods of analytical laboratory water use, the representation and determination of numerical revision rules and limit values are included. The determination principle is to extract the Spinning & weaving dyeing and finishing aid samples by n-hexane-acetone mixed solvent or Miscellaneous suitable solvent, and then use gas chromatograph Mass Spectrometry (MS) to determine Retention time and characteristic ions Qualitative, quantitative ion Peak area external standard method Quantitative. In terms of reagents and materials, standard substances and analytically pure reagents that meet the regulations are used, and the inspection results are judged according to the revised value comparison method.
| Status | Active |
|---|---|
| CCS | G70 | ICS | 71.100.40 |
| Release Date | 2023-11-27 00:00:00 | Implementation Date | 2024-06-01 00:00:00 |