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SN/T 4666-2016: Import and export textiles--Determination of hexavalent chromium--HPLC-ICP-MS method
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| SN/T 4666-2016 | English | 229 |
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Import and export textiles--Determination of hexavalent chromium--HPLC-ICP-MS method
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SN/T 4666-2016
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PDF similar to SN/T 4666-2016
Basic data | Standard ID | SN/T 4666-2016 (SN/T4666-2016) | | Description (Translated English) | Import and export textiles--Determination of hexavalent chromium--HPLC-ICP-MS method | | Sector / Industry | Commodity Inspection Standard (Recommended) | | Classification of Chinese Standard | W55 | | Word Count Estimation | 10,162 | | Date of Issue | 2016-12-12 | | Date of Implementation | 2017-07-01 | | Regulation (derived from) | State-Quality-Inspection-Accredidation (2016) No.590 | | Issuing agency(ies) | General Administration of Customs | SN/T 4666-2016: Import and export textiles--Determination of hexavalent chromium--HPLC-ICP-MS method
---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
(Textiles for import and export - Determination of hexavalent chromium - High performance liquid chromatography - inductively coupled plasma mass spectrometry)
People's Republic of China Entry-Exit Inspection and Quarantine Industry Standard
Highly efficient determination of hexavalent chromium in import and export textiles
Liquid chromatography-inductively coupled plasma mass spectrometry
HPLC-ICP-MSmethod
Released on December 12,.2016
2017-07-01 implementation
People's Republic
The General Administration of Quality Supervision, Inspection and Quarantine issued
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This standard is proposed and managed by the National Certification and Accreditation Administration.
This standard was drafted. Hubei Entry-Exit Inspection and Quarantine Bureau of the People's Republic of China.
The main drafters of this standard. Guo Shaofei, Wang Peng, Ye Cheng, Chen Xiaoyu, Ling Yuetao, Wang Hui, Pan Ruihua, Wang Fan.
Highly efficient determination of hexavalent chromium in import and export textiles
Liquid chromatography-inductively coupled plasma mass spectrometry
Warning - Personnel using this standard should have practical experience in formal laboratory work. This standard does not indicate all possible security questions.
question. It is the responsibility of the user to take appropriate safety and health measures and to ensure compliance with the conditions set by the relevant national regulations.
1 Scope
This standard specifies high performance liquid chromatography-inductively coupled plasma mass spectrometry (HPLC-ICP-ICP-MS) for extractable hexavalent chromium from textile extracts.
MS) Method of determination.
This standard applies to the determination of hexavalent chromium in various textile materials and their products.
2 Normative references
The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article.
Pieces. For undated references, the latest edition (including all amendments) applies to this document.
GB/T 6682 Analytical laboratory water specifications and test methods
3 Principle
After the sample was extracted with acidic sweat, the filtered extract was measured by high performance liquid chromatography-inductively coupled plasma mass spectrometry.
Standard method of quantification.
4 reagents
Unless otherwise specified, the reagents used were of analytical grade and the water was the first grade water specified in GB/T 6682.
4.1 L-Histidine hydrochloride monohydrate (C6H9O2N3·HCl·H2O).
4.2 Sodium chloride.
4.3 Sodium dihydrogen phosphate dihydrate (NaH2PO4·2H2O).
4.4 Sodium hydroxide.
4.5 Tetrabutylammonium hydrogen sulfate.
4.6 Ammonia. Excellent grade.
4.7 Methanol. Chromatographic grade.
4.8 Nitric acid. excellent grade pure.
4.9 Sodium hydroxide solution (0.1mol/L). Weigh 0.4g of sodium hydroxide (4.4) and dilute to 100mL with water.
4.10 Ammonia solution (1 9). Measure 10 mL of ammonia water (4.6), slowly pour into 90 mL of water, and mix.
4.11 Acidic sweat. Weigh 0.5g L-histidine hydrochloride monohydrate (4.1), 5.0g sodium chloride (4.2) and 2.2g sodium dihydrogen phosphate dihydrate
Compound (4.3), dissolved in water, add water to nearly 1000 mL, adjust the pH to 5.5 ± 0.2 with sodium hydroxide solution (4.9), and dilute to 1000 mL with water.
The solution is now ready for use.
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