This standard specifies the limit requirements, test methods, inspection rules and test report for parts of harmful substances in textile dyeing and finishing auxiliaries (see Annex A).
This standard is applicable to all kinds of textile dyeing and finishing auxiliaries used in the dyeing and finishing process of textile products.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 601 Chemical reagent - Preparations of reference titration solutions
GB/T 603 Chemical reagent - Preparations of reagent solutions for use in test methods
GB/T 6682-2008 Water for analytical laboratory use - Specification and test methods
GB/T 8170-2008 Rules of rounding off for numerical values & expression and judgment of limiting values
GB 19601 Limit and determination of 23 harmful aromatic amines in dye products
GB/T 23972 Determination of alkylphenols and alkylphenol polyethoxylates in textile dyeing and finishing auxiliaries - LC/MS method
GB/T 24101 Limit and determination of 4-aminoazobenzene in dye products
GB/T 24166 Determination of the content of chlorinated phenols in dye products
GB/T 24168 Determination of the content of phthalate in textile dyeing and finishing auxiliaries
GB/T 29493.2 Determination of harmful substances in textile dyeing and finishing auxiliaries - Part 2: Determination of perfluorooctane sulfonates and perfluorooctanoicacid - HPLC-MS/MS method
GB/T 29493.3 Determination of harmful substances in textile dyeing and finishing auxiliaries - Part 3: Determination of organotins - GC/MS method
GB/T 29493.5 Determination of harmful substances in textile dyeing and finishing auxiliaries - Part 5: Determination of free formaldehyde in emulsion polymers
GB/T 33093 Determination of chromium (VI) content in textiles dyeing and finishing auxiliaries
GB/T 34673 Determination of 9 heavy metal contents in textile dyeing and finishing auxiliaries
HG/T 4266-2011 Textile dyeing and finishing auxiliaries - Determination of solid content
HG/T 4446 Textile dyeing and finishing auxiliaries - Determination of formaldehyde in dye fixing agent
3 Limit requirements
The limit of harmful substances in textile dyeing and finishing auxiliaries shall meet those specified in Table 1.
The liquid textile dyeing and finishing auxiliaries are converted according to their solid content mass fraction of 100%. The solid content is determined according to the test method specified in HG/T 4266-2011.
GB/T 20708-2019 The following standards are cited：
