GB/T 17593.2-2025 PDF English
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GB/T 17593.2-2025: Textile - Determination of heavy metals - Part 2: Inductively coupled plasma-optical emission spectrometry (ICP-OES) and inductively coupled plasma-mass spectrometry (ICP-MS)
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GB NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 59.080.01 CCS W 04 Replacing GB/T 17593.2-2007 Textile - Determination of Heavy Metals - Part 2. Inductively Coupled Plasma-optical Emission Spectrometry (ICP-OES) and Inductively Coupled Plasma-mass Spectrometry (ICP-MS) Issued on: OCTOBER 31, 2025 Implemented on: NOVEMBER 1, 2027 Issued by. State Administration for Market Regulation; Standardization Administration of the People’s Republic of China.
Table of Contents
Foreword... 3 Introduction... 5 1 Scope... 6 2 Normative References... 6 3 Terms and Definitions... 6 4 Principle... 6 5 Reagents and Materials... 7 6 Instruments and Equipment... 7 7 Test Procedures... 8 8 Result Expression... 10 9 Limit of Quantitation and Precision... 10 10 Test Report... 10 Appendix A (informative) Reference Conditions for ICP-OES Instrument Operation12 Appendix B (informative) Reference Conditions for ICP-MS Instrument Operation. 13 Appendix C (informative) Limit of Quantitation... 14Foreword
This document was drafted in accordance with the rules provided in GB/T 1.1-2020 Directives for Standardization - Part 1.Rules for the Structure and Drafting of Standardizing Documents. This document is Part 2 of GB/T 17593 Textile - Determination of Heavy Metals. GB/T 17593 has issued the following parts. ---Part 1.Atomic Absorption Spectrophotometry; ---Part 2.Inductively Coupled Plasma-optical Emission Spectrometry (ICP-OES) and Inductively Coupled Plasma-mass Spectrometry (ICP-MS); ---Part 3.Chromium (VI) - Spectrophotometry; ---Part 4.Arsenic and Mercury - Atomic Fluorescence Spectrophotometry. This document serves as a replacement for GB/T 17593.2-2007 Textiles - Determination of Heavy Metals - Part 2.Inductively Coupled Plasma Atomic Emission Spectrometry. In comparison with GB/T 17593.2-2007, apart from structural adjustments and editorial modifications, the main technical changes are as follows. ---The scope of application is modified (see Chapter 1; Chapter 1 of Version 2007); ---The test principle of inductively coupled plasma-mass spectrometer is added (see Chapter 4); ---Reagents and materials are added, including three types of concentrated nitric acid and nitric acid solution reagents, internal standard stock solution, and gold element solution (see 5.2 ~ 5.4, 5.7 and 5.8); ---Instruments and equipment are added, including aqueous filter membrane, detection instruments, balance and pipette (see 5.9, 6.2, 6.3 and 6.6); ---The preparation of the mixed internal standard working solution is added to the test procedures (see 7.1.2); ---“ICP-AES method” is modified into “ICP-OES method”, “low limit of determination” is modified into “limit of quantitation”, and the quantitation limit values for each element are modified (see 9.1 and Appendix C; Table 1 of 8.1 in Version 2007); ---The quantitation limit of ICP-MS method is added (see 9.1 and Appendix C); ---The instrument detection method is added to the test report [see c) of Chapter 10]. Please be noted that certain content of this document may involve patents. The issuing institution of this document does not undertake the responsibility of identifying these patents. Textile - Determination of Heavy Metals - Part 2. Inductively Coupled Plasma-optical Emission Spectrometry (ICP-OES) and Inductively Coupled Plasma-mass Spectrometry (ICP-MS) WARNING---personnel using this document shall have practical experience working in a formal laboratory. This document does not address all potential safety issues. Users are responsible for taking appropriate safety and health precautions and ensuring compliance with relevant national regulations.1 Scope
This document describes the methods for determining 12 extractable heavy metals---lead (Pb), copper (Cu), zinc (Zn), arsenic (As), cadmium (Cd), chromium (Cr), cobalt (Co), nickel (Ni), mercury (Hg), antimony (Sb), selenium (Se), and barium (Ba) in textiles using inductively coupled plasma-optical emission spectrometry (ICP-OES) and inductively coupled plasma- mass spectrometry (ICP-MS). This document applies to all types of textile products.2 Normative References
The contents of the following documents constitute indispensable clauses of this document through the normative references in the text. In terms of references with a specified date, only versions with a specified date are applicable to this document. In terms of references without a specified date, the latest version (including all the modifications) is applicable to this document. GB/T 3922 Textiles - Tests for Color Fastness - Color Fastness to Perspiration GB/T 6682-2008 Water for Analytical Laboratory Use - Specification and Test Methods3 Terms and Definitions
This document does not have terms or definitions that need to be defined.4 Principle
After extraction and filtration with acidic perspiration, use an inductively coupled plasma- optical emission spectrometer for testing. At the corresponding wavelength, determine the emission intensity of each heavy metal element and adopt the external standard method for quantitative determination. Alternatively, after filtration of the extract, use an inductively coupled plasma-mass spectrometer for testing. Perform qualitative determination based on the element’s specific mass number (mass-to-charge ratio, m/z) and adopt the internal standard method for quantitative determination.5 Reagents and Materials
Unless otherwise specified, only reagents confirmed to be guaranteed reagents shall be used in the analysis. 5.1 Water. Grade-2 water conforming to the provisions of GB/T 6682-2008. 5.2 Concentrated nitric acid. with a mass fraction of 65% ~ 68%. 5.3 Nitric acid solution (1 + 19). with a volume fraction of 5%. Take 50 mL of concentrated nitric acid (5.2) and use water to dilute it, then, reach a constant volume of 1,000 mL and shake it well. 5.4 Nitric acid solution (1 + 99). with a volume fraction of 1%. Take 10 mL of concentrated nitric acid (5.2) and use water to dilute it, then, reach a constant volume of 1,000 mL and shake it well. 5.5 Acidic perspiration. in accordance with the provisions of GB/T 3922, prepare acidic perspiration. The test solution shall be prepared right before use. 5.6 Heavy metal element stock solutions (1,000 mg/L). for lead, copper, zinc, arsenic, cadmium, chromium, cobalt, nickel, mercury, antimony, selenium and barium, use single-element or multi-element standard stock solutions of certified standard samples/substances. 5.7 Internal standard stock solutions (1,000 mg/L). for the internal standard elements (bismuth, indium and germanium) corresponding to each analytical element (see Appendix A), use single- element or multi-element standard stock solutions of certified standard samples/substances. 5.8 Gold element solution (0.2 mg/L). prepared by diluting a high-concentration gold element standard solution with acidic perspiration (5.5). Other suitable concentrations can be configured based on actual conditions. 5.9 Aqueous filter membrane. with a pore size of 0.45 m.6 Instruments and Equipment
6.1 Inductively coupled plasma-optical emission spectrometer (ICP-OES). 6.2 Inductively coupled plasma-mass spectrometer (ICP-MS). 6.3 Balance. with an accuracy of 0.01 g. 6.4 Constant-temperature water bath oscillator. temperature controllable at (37 2) C, oscillation frequency 60 times/min, reciprocating type. 6.5 Stoppered conical flask. 150 mL. 6.6 Pipettes. 1 mL, 5 mL, 10 mL.7 Test Procedures
7.1 Preparation of Standard Solutions 7.1.1 Preparation of mixed standard working solution Use lead, copper, zinc, arsenic, cadmium, chromium, cobalt, nickel, mercury, antimony, selenium, and barium single standard solutions to prepare a mixed stock solution, use nitric acid solution (1 + 19) (5.3) to dilute it to a mass concentration of 10 mg/L. The standard working solution of mercury shall be separately prepared, and diluted with nitric acid solution (1 + 19) (5.3) to a mass concentration of 100 g/L. NOTE. the mixed standard working solution shall be stored at 0 C ~ 4 C and have a shelf life of one month. If turbidity, precipitation, or color change occurs, re-prepare it. 7.1.2 Preparation of mixed internal standard working solution As needed, respectively transfer appropriate amounts of the internal standard stock solutions (5.7) and use nitric acid solution (1 + 99) (5.4) to dilute to a suitable concentration. 7.2 Plotting of the Standard Working Curve Use acidic perspiration (5.5) to dilute the heavy metal element stock solutions (5.6) to prepare a series of standard solutions with at least 5 concentration points. Prepare them right before use. In the preparation of the series standard curve of mercury, it shall be ensured that there is approximately 200 g/L of gold element (or other suitable concentration) for each concentration point. When using an inductively coupled plasma-mass spectrometer, the mixed internal standard working solution (7.1.2) can be directly added to the series of standard solutions, or it can be added online via a peristaltic pump. Use an inductively coupled plasma-optical emission spectrometer (6.1) (see Appendix A for reference conditions for instrument analysis), in ascending order of concentration, successively determine the spectral intensity of each element to be tested in the series of standard solutions. With spectral intensity as the y-coordinate and elemental mass concentration (mg/L) as the x- ......Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
