GB/T 20384-2024 English PDFUS$299.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 20384-2024: Textiles - Determination of chlorobenzenes and chlorinated toluenes Status: Valid GB/T 20384: Historical versions
Basic dataStandard ID: GB/T 20384-2024 (GB/T20384-2024)Description (Translated English): Textiles - Determination of chlorobenzenes and chlorinated toluenes Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: W04 Classification of International Standard: 59.080.01 Word Count Estimation: 14,193 Date of Issue: 2024-03-15 Date of Implementation: 2024-10-01 Older Standard (superseded by this standard): GB/T 20384-2006 Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration GB/T 20384-2024: Textiles - Determination of chlorobenzenes and chlorinated toluenes---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.ICS 59.080.01 CCS W04 National Standards of People's Republic of China Replace GB/T 20384-2006 Textiles. Chlorinated benzenes and chlorinated toluenes Determination of compounds Released on 2024-03-15 2024-10-01 Implementation State Administration for Market Regulation The National Standardization Administration issued ForewordThis document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1.Structure and drafting rules for standardization documents" Drafting. This document replaces GB/T 20384-2006 "Determination of residual chlorinated benzene and chlorinated toluene in textiles" and is compatible with GB/T 20384- Compared with.2006, in addition to structural adjustments and editorial changes, the main technical changes are as follows. --- Changed the scope of application, the number of chlorinated benzene and chlorinated toluene compounds tested increased from 23 to 29 (see Chapter 1,.2006 Edition Chapter 1 of); --- Added terms and definitions (see Chapter 3); --- Changed the preparation of standard solutions (see Chapter 5, Chapter 3 of the.2006 edition); --- Added volumetric flasks and analytical balances (see 6.4, 6.5); --- Changed the sample weight and extraction time (see 7.2, 5.1 of the.2006 edition); --- Changed the analysis steps, subdivided into "qualitative analysis" and "quantitative analysis" (see 7.3.1, 7.3.2, 5.2.2 of the.2006 edition); --- Added blank test (see 7.4); --- Changed the limit of quantification (see 9.1, 7.1 of the.2006 edition). Please note that some of the contents of this document may involve patents. The issuing organization 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 is under the jurisdiction of the National Technical Committee on Standardization of Textiles (SAC/TC209). This document was drafted by. Shanghai Intertek Quality Technical Services Co., Ltd., China Textile Standards Inspection and Certification Co., Ltd., Zhejiang Lanyu Digital Technology Co., Ltd., Shaoxing Dafa Industry Co., Ltd., Jiangsu Chenhong Textile Technology Co., Ltd., Zhejiang Changxing Weimeisite Interlining Co., Ltd. Company, China Textile Standard (Fujian) Testing Co., Ltd., Jiangxi Sansheng New Materials Technology Co., Ltd., and Quanzhou Bogeng Biotechnology Co., Ltd. The main drafters of this document are. Zhang Jingjie, Zhu Yujie, Dong Xiao, Si Ying, Bai Yantao, He Tianyi, Long Huaiming, Li Guorong, You Wen, and Xiao Ding. The previous versions of this document and the documents it replaces are as follows. ---First published in.2006 as GB/T 20384-2006; ---This is the first revision. Textiles. Chlorinated benzenes and chlorinated toluenes Determination of compounds Warning---People who use this document should have practical experience in formal laboratory work. This document does not address all possible safety issues. The user is responsible for taking appropriate safety and health measures and ensuring compliance with the conditions stipulated in relevant national laws and regulations.1 ScopeThis document describes the determination of 29 chlorinated benzenes and chlorinated toluenes in textiles using gas chromatography-mass spectrometry (GC-MS). test method. This document applies to all types of textile products.2 Normative referencesThis document has no normative references.3 Terms and definitionsThere are no terms or definitions that require definition in this document.4 PrincipleThe sample was extracted with dichloromethane by ultrasonic and determined by GC-MS in selected ion monitoring mode and external standard method.5 Reagents or materialsUnless otherwise stated, all reagents used were of analytical grade. 5.1 Dichloromethane, chromatographic grade. 5.2 Chlorinated benzene and chlorinated toluene standard substances. in accordance with the requirements of Appendix A, with a purity of not less than 98% (mass fraction). 5.3 Standard stock solution (1000 mg/L). Weigh a certain amount of the standard substances listed in Appendix A, dissolve them in dichloromethane, and A single-component standard stock solution with a mass concentration of 1000 mg/L was prepared. Note. The standard stock solution should be stored at 0℃~4℃ away from light and has a shelf life of 12 months. 5.4 Standard intermediate solution A (10 mg/L). Pipette 0.1 mL of the standard stock solution (5.3) of each substance into the same 10 mL container. Bottle, dilute to volume with dichloromethane. Note. Standard intermediate solution A should be stored at 0℃~4℃ away from light and has a shelf life of 3 months. 5.5 Standard intermediate solution B (1 mg/L). Pipette 1 mL of standard intermediate solution A (5.4) into a 10 mL volumetric flask and Volume. Note. Standard intermediate solution B should be stored at 0℃~4℃ away from light and has a shelf life of 3 months. 5.6 Standard working solution. Take an appropriate amount of standard intermediate solution B (5.5) and dilute it with dichloromethane to prepare a series of 5 standard solutions of different concentrations. ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 20384-2024_English be delivered?Answer: Upon your order, we will start to translate GB/T 20384-2024_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.Question 2: Can I share the purchased PDF of GB/T 20384-2024_English with my colleagues?Answer: Yes. The purchased PDF of GB/T 20384-2024_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.Question 3: Does the price include tax/VAT?Answer: Yes. 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