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GBZ21276-2007 English PDF

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US$679.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GBZ21276-2007: Determination of restricted substances (polybrominated biphenyls and polybrominated diphenyl ethers) in electrical and electronic equipment
Status: Obsolete

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/Z 21276-2007	679	Add to Cart	3 days	Determination of restricted substances (polybrominated biphenyls and polybrominated diphenyl ethers) in electrical and electronic equipment	Obsolete

Similar standards

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Basic data

Standard ID: GB/z 21276-2007 (GB/z21276-2007)
Description (Translated English): Determination of restricted substances (polybrominated biphenyls and polybrominated diphenyl ethers) in electrical and electronic equipment
Sector / Industry: National Standard
Classification of Chinese Standard: L10
Classification of International Standard: 31.020
Word Count Estimation: 17,123
Date of Issue: 2007-12-20
Date of Implementation: 2008-06-01
Regulation (derived from): National Standards Bulletin 2007 No.13 (Total No.113)
Issuing agency(ies): Ministry of Health of the People's Republic of China
Summary: This standard specifies the method for measuring electrical and electronic products, polybrominated biphenyls and polybrominated diphenyl ethers content. The technical guidance document for the determination of electrical and electronic products, polybrominated biphenyls and polybrominated diphenyl ethers content.

GBZ21276-2007: Determination of restricted substances (polybrominated biphenyls and polybrominated diphenyl ethers) in electrical and electronic equipment

---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.
GB /Z 21276-2007 Determination of restricated substances (polybrominated biphenyls and polybrominated diphenyl ethers) in electrical and electronic equipment ICS 31.020 L10 National Standardization Technical Document of the People's Republic of China GB /Z21276-2007 Restricted substances in electrical and electronic products Polybrominated biphenyls (PBB狊), polybrominated diphenyl ethers (PBDE狊) Detection method Released on.2007-12-20 General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China China National Standardization Administration issued

Foreword

Appendix A, Appendix B, Appendix C, Appendix D, Appendix E, Appendix F, Appendix G and Appendix H of this Guidance Technical Document are data. Sex appendix. This guidance document is presented by the Environmental Standardization Technical Committee (SAC/TC297) of the National Electrical and Electronic Products and Systems. Return to the mouth. The main technical documents of this guiding technical document are. Shenzhen Entry-Exit Inspection and Quarantine Bureau of the People's Republic of China. This guiding technical document participated in the drafting unit. Shenzhen Institute of Metrology and Quality Inspection. The main drafters of this guiding technical document. Liu Li, Li Ying, Yang Zuojun, Wu Jingwu, Zhang Wei, Xu Dezhen, Liu Zhihong, Yang Wanying, Chen Zeyong. This guidance document is the first release. GB /Z21276-2007 Restricted substances in electrical and electronic products Polybrominated biphenyls (PBB狊), polybrominated diphenyl ethers (PBDE狊) Detection method

1 Scope

This guidance document specifies methods for determining the levels of polybrominated biphenyls and polybrominated diphenyl ethers in electrical and electronic products. This guidance document applies to the determination of polybrominated biphenyls and polybrominated diphenyl ethers in electrical and electronic products. The first method. gas chromatography-mass spectrometry

2 Principle

The sample is subjected to microwave extraction or Soxhlet extraction, and the extract is purified by a silica gel solid phase extraction column, and then concentrated, and the volume is used as a measurement solution. Chromatography-mass spectrometry (GC/MS) was determined by internal standard method.

3 reagents and materials

3.1 Toluene. chromatographically pure. 3.2 n-hexane. chromatographically pure. 3.3 n-propanol. chromatographically pure. 3.4 Methanol. Chromatographically pure. 3.5 Toluene. methanol (10.1). 3.6 Toluene. n-propanol (1.1). 3.7 Liquid nitrogen. industrial grade. 3.8 PBBs standard solution. 3.9 PBDEs standard solution. 3.10 Preparation of mixed standard solution. Transfer the appropriate volume of PBBs (3.8) and PBDEs (3.9) standard solution separately, dilute with toluene, match Prepare a standard solution of the desired concentration. 3.11 Internal standard. Decachlorobiphenyl solution. 3.12 Silica gel solid phase extraction column. 6 mL, 2 g or equivalent, washed with 5 mL of n-hexane (3.2) before use to keep it moist.

4 instruments

4.1 Gas Chromatography-Mass Spectrometer. The highest mass-to-charge ratio is above 1000amu. 4.2 Soxhlet extraction device. 4.3 Rotate the evaporator. 4.4 Shredder or similar equipment. 4.5 Closed microwave extractor. 4.6 Solid phase extraction unit. 4.7 Analytical balance. Sensitivity 0.1mg.

5 sample preparation

The sample split in the electrical and electronic products is broken into small pieces of less than 1cm × 1cm, and then pulverized by liquid nitrogen (3.5) (4.4) GB /Z21276-2007 ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GBZ21276-2007_English be delivered?

Answer: Upon your order, we will start to translate GBZ21276-2007_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 GBZ21276-2007_English with my colleagues?

Answer: Yes. The purchased PDF of GBZ21276-2007_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. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countries

Question 4: Do you accept my currency other than USD?

Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.