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GB/T 17592-2024 PDF EnglishUS$505.00 · In stock · Download in 9 seconds
GB/T 17592-2024: Textiles - Determination of the banned azo colourants Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedure Status: Valid GB/T 17592: Evolution and historical versions
Excerpted PDFsFull copy of true-PDF will be delivered in 9 seconds upon purchase: GB/T 17592-2024Similar standardsGB/T 17644 GB/T 17593.2 GB/T 17596 GB/T 19980GB/T 17592-2024: Textiles - Determination of the banned azo colourants---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT17592-2024GB NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 59.080.01 CCS W 04 Replacing GB/T 17592-2011 Textiles - Determination of the banned azo colorants (ISO 14362-1.2017, Textiles - Methods for determination of certain aromatic amines derived from azo colorants - Part 1.Detection of the use of certain azo colorants accessible with and without extracting the fibers, MOD) Issued on. MARCH 15, 2024 Implemented on. APRIL 01, 2025 Issued by. State Administration for Market Regulation; National Standardization Administration. Table of ContentsForeword... 3 1 Scope... 6 2 Normative references... 6 3 Terms and definitions... 6 4 Principle... 6 5 Reagents and materials... 7 6 Instruments and equipment... 8 7 Sampling and specimen preparation... 9 8 Test steps... 10 9 Calculation and expression of results... 14 10 Test report... 15 Appendix A (Informative) Technical differences between this document and ISO 14362-1.2017... 16 Appendix B (Normative) Carcinogenic aromatic amines... 18 Appendix C (Informative) Chromatographic analysis... 19 Appendix D (Informative) Method for liquid-liquid extraction without using diatomaceous earth column... 28 Appendix E (Informative) Judgment guide - Analysis and interpretation of results.. 31 Appendix F (Informative) Pigments... 37 Appendix G (Informative) Textiles - Determination of banned azo dyes - Extraction method... 40 References... 44ForewordThis document was drafted in accordance with the provisions of GB/T 1.1-2020 "Directives for standardization - Part 1.Rules for the structure and drafting of standardizing documents". This document replaces GB/T 17592-2011 "Textiles - Determination of the banned azo colorant". Compared with GB/T 17592-2011, in addition to structural adjustments and editorial changes, the main technical changes are as follows. - ADD the reagents such as acetonitrile, tert-butyl methyl ether, aromatic amine quantitative standard working solution, sodium hydroxide aqueous solution, benzidine-d8; SPECIFY the validity period of sodium dithionite aqueous solution; CHANGE the concentrations of aromatic amine standard stock solution, aromatic amine standard working solution, internal standard solution; DELETE ether (see Chapter 5; Chapter 4 of the 2011 edition); - ADD the pipettes, analytical balances, pH meters; ADD the mass selective detectors (MS) and polytetrafluoroethylene filters to high performance liquid chromatographs; ADJUST the size of glass or polypropylene columns (see Chapter 6; Chapter 5 of the 2011 edition); - ADD the "Sampling and preparation of specimen", clarifying the requirements for sampling by components and colors (see Chapter 7); - CHANGE the amount of citrate-sodium hydroxide buffer solution added and the cooling time (see 8.1; 6.1 of the 2011 edition); - CHANGE the separation and concentration steps, extraction reagents, volume- fixing reagents of aromatic amines; ADD the storage requirements of the sample solution after volume fixation (see 8.2; 6.2 of the 2011 edition); - ADD the requirements for the qualitative analysis of aniline and 1,4- phenylenediamine (see 8.3.2); - DELELTE the specific steps of gas chromatography/mass spectrometry qualitative and quantitative analysis; MOVE the chromatographic analysis conditions to Appendix C (see Appendix C; 6.3 and 6.4 of the 2011 edition); - ADD the "Quantitative equipment and other sources related to false positive results" (see 8.3.3); - ADD the "verification", specifying the minimum recovery rate requirements of aromatic amines (see 8.4); - CHANGE the "result calculation and expression" (see Chapter 9; Chapter 7 of the 2011 edition); - ADJUST the original Appendix A to Appendix B. This document modifies and adopts ISO 14362-1.2017 "Textiles - Methods for determination of certain aromatic amines derived from azo colorants - Part 1.Detection of the use of certain azo colorants accessible with and without extracting the fibers". Compared with ISO 14362-1.2017, this document has made the following structural adjustments. - Chapter 4 corresponds to Chapter 5 of ISO 14362-1.2017; - Chapter 5 corresponds to Chapter 7 of ISO 14362-1.2017, of which 5.1 corresponds to 7.11 of ISO 14362-1.2017 and 5.2 ~ 5.10 correspond to 7.1 ~ 7.10 of ISO 14362- 1.2017; - Chapter 6 corresponds to Chapter 8 of ISO 14362-1.2017, of which 6.1 ~ 6.7 correspond to 8.3 ~ 8.8 of ISO 14362-1.2017, meanwhile 6.8 and 6.9 are added; - Chapter 7 corresponds to Chapter 9 of ISO 14362-1.2017, of which 7.1 ~ 7.2 correspond to 9.1 ~ 9.2 of ISO 14362-1.2017, 7.3 corresponds to 9.6 of ISO 14362- 1.2017; - Chapter 8 corresponds to Chapter 10 of ISO 14362-1.2017, of which 8.1 ~ 8.4 correspond to 10.3 ~ 10.6 of ISO 14362-1.2017; - Chapter 9 corresponds to Chapter 11 of ISO 14362-1.2017; Chapter 10 corresponds to Chapter 12 of ISO 14362-1.2017; - Appendices C ~ F correspond to Appendix A, Appendix E, Appendix C, Appendix G of ISO 14362-1.2017, respectively; Appendix A and Appendix G are added. This document has technical differences, as compared with ISO 14362-1.2017, which are marked with a vertical single line (|) in the outer margin of the clauses involved. A list of these technical differences and their reasons is shown in Appendix A. This document also made the following editorial changes. - CHANGE the standard name to "Textiles - Determination of the banned azo colorants"; - MOVE the content of Chapter 4 of the international standard to Appendix B of this document; - DELETE the informative Appendix B "Reliability of the method" from the international standard. Please note that some of the content of this document may involve patents. The issuing agency of this document does not assume the responsibility for identifying patents. This document was proposed by the China National Textile and Apparel Council. This document shall be under the jurisdiction of the National Technical Committee for Textile Standardization (SAC/TC 209). This standard replaces the standard previously issued as follows. - It was first published in 1998 as GB/T 17592.1 ~ 17592.3-1998; - It was first revised in 2006 as GB/T 17592-2006; - It was second revised in 2011 as GB/T 17592-2011; - This is the third revision. Textiles - Determination of the banned azo colorants Warning - Personnel using this document shall have practical experience in formal laboratory work. This document does not address all possible safety issues. Users are responsible for taking appropriate safety and health measures and ensuring that the conditions specified in relevant national laws and regulations are met.1 ScopeThis document describes the determination method of banned azo dyes that can decompose carcinogenic aromatic amines in Appendix B in textile products. This document is applicable to colored textile products, which are processed by dyeing, printing, coating.2 Normative referencesThe contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, for dated references, only the version corresponding to that date applies to this document; for undated references, the latest version (including all amendments) applies to this document. GB/T 6682 Water for analytical laboratory use - Specification and test methods GB/T 23344 Textiles - Determination of 4-aminoazobenzene3 Terms and definitionsThere are no terms and definitions that need to be defined in this document.4 PrincipleUnder specified conditions, the specimen is placed in a citrate-sodium hydroxide buffer solution, reduced and cleaved with sodium dithionite to produce possible aromatic amines. The aromatic amines are extracted into tert-butyl methyl ether through a diatomaceous earth column, concentrated and fixed to volume with a suitable solvent, meanwhile the aromatic amines are determined by chromatography (see Appendix C).5 Reagents and materialsUnless otherwise specified, all reagents used are analytically pure.6 Instruments and equipmentReactor. Glass or polypropylene column. Vacuum rotary evaporator.7 Sampling and specimen preparationTake a representative sample and cut it into small pieces of about 5 mm × 5 mm. Mix them. Weigh about 1.0 g, accurate to 0.01 g. If the sample is a semi-finished product, cut the specimen directly.8 Test stepsPlace the specimen in a reactor (see 6.1). Add 15 mL of citrate-sodium hydroxide buffer solution (see 5.5), which was preheated to (70 ± 2) °C. Seal the reactor. Shake to completely soak the specimen. Place it in a constant temperature heater (see 6.2), which was preheated to (70 ± 2) °C, to hold for (30 ± 1) min. Add 0.2 mL of sodium hydroxide aqueous solution (see 5.10) to the reactor. Shake vigorously. Pipette the reaction solution to the diatomaceous earth column (see 6.3). Let it stand for adsorption for 15 minutes.9 Calculation and expression of resultsAccording to 8.3, if the content of any aromatic amine measured by using the aromatic amine standard working solution (see 5.9.2) is greater than 5 mg/kg, a standard curve with at least 6 points (including blank) shall be established (see 5.9.3), for quantitative analysis of the aromatic amine. Plot a standard curve of response value and known concentration (if an internal standard is used, the response value needs to be calibrated). The mass concentration (ρs) of the aromatic amine is obtained from the standard curve, in micrograms per milliliter (μg/mL).10 Test reportThe test report shall include the following. a) The number of this document, i.e., GB/T 17592-2024; b) The source and description of the sample; c) The date of receipt and the date of the test of the sample. ......Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al. |