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GB/T 24165-2020 English PDF

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Q: Should I purchase the latest version GB/T 24165-2020?

Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 24165-2020 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.

US$149.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 24165-2020: Determination of polychlorinated biphenyls in dye products
Status: Valid

GB/T 24165: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 24165-2020	149	Add to Cart	3 days	Determination of polychlorinated biphenyls in dye products	Valid
GB/T 24165-2009	479	Add to Cart	3 days	Determination of the content of polychlorinated biphenyls in dye products	Obsolete

Similar standards

GB/T 24167 GB/T 24166 GB/T 23978

Basic data

Standard ID: GB/T 24165-2020 (GB/T24165-2020)
Description (Translated English): Determination of polychlorinated biphenyls in dye products
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: G55
Classification of International Standard: 71.100.01; 87.060.10
Word Count Estimation: 8,812
Date of Issue: 2020-11-19
Date of Implementation: 2021-10-01
Older Standard (superseded by this standard): GB/T 24165-2009
Quoted Standard: GB/T 8170-2008
Regulation (derived from): National Standard Announcement No. 26 of 2020
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration
Summary: This standard specifies the principles, principles, reagents or materials, equipment, preparation of standard solutions, preparation of sample solutions for the determination of 7 indicative PCB residues in dye products by gas chromatography-mass spectrometry (GC/MS) Analysis procedures, calculation of results, detection limits, precision and accuracy, and test reports. This standard applies to the determination of PCBs in various types of dye products.

GB/T 24165-2020: Determination of polychlorinated biphenyls in dye products

---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.
Determination of polychlorinated biphenyls in dye products ICS 71.100.01;87.060.10 G55 National Standards of People's Republic of China Replace GB/T 24165-2009 Determination of polychlorinated biphenyls in dye products 2020-11-19 released 2021-10-01 implementation State Administration for Market Regulation Issued by the National Standardization Management Committee

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard replaces GB/T 24165-2009 "Determination of Polychlorinated Biphenyls in Dyestuff Products". Compared with GB/T 24165-2009, except for The main technical changes in addition to the editorial modification are as follows. ---Modified the scope of application of the standard (see Chapter 1, Chapter 1 of the.2009 edition); ---Deleted the gas chromatography method (GC-ECD) (see Chapter 4 of the.2009 edition); ---Modified the principle of the method (see Chapter 3, Chapter 3 of the.2009 edition); ---Modified the standard solution preparation method (see Chapter 6, 4.3 of the.2009 edition); ---Modified the sample solution preparation method (see Chapter 7, 4.5.1 of the.2009 edition); ---Modified the chromatographic analysis conditions (see 8.1, 4.5.2 of the.2009 edition); ---Modified the determination requirements of method accuracy (see 10.3, 5.2 of the.2009 edition); ---Modified the types of PCBs (see Appendix A, Appendix A of the.2009 edition). This standard was proposed by the China Petroleum and Chemical Industry Federation. This standard is under the jurisdiction of the National Dyestuff Standardization Technical Committee (SAC/TC134). Drafting organizations of this standard. Shenyang Chemical Research Institute Co., Ltd., Dalian University of Technology, Jinhua Shuanghong Chemical Co., Ltd., Shaoxing Quality Technology Technology Supervision and Inspection Institute, Liaoning Province Ecological Environmental Protection Science and Technology Center, China National Chemical Economic and Technological Development Center, Transchem Zhilian Co., Ltd., Shenyang Yangshen Chemical Institute Testing Technology Co., Ltd., National Dyestuff Quality Supervision and Inspection Center. The main drafters of this standard. Xu Weichang, Lu Shuang, Shen Zhongyun, Ji Lanqin, Xu Liang, Peng Xiaojun, Xue Yan, Zhao Ting, Dai Baoyi, Bao Guofang. The previous versions of the standard replaced by this standard are as follows. ---GB/T 24165-2009. Determination of polychlorinated biphenyls in dye products Warning---Personnel using this standard should have practical experience in formal laboratory work. This standard does not point out all possible safety issues question. The user is responsible for taking appropriate safety and health measures and ensuring compliance with the conditions stipulated by relevant national laws and regulations.

1 Scope

This standard specifies the method for the determination of 7 indicative PCB residues in dye products by gas chromatography-mass spectrometry (GC/MS) Principles, reagents or materials, instruments and equipment, standard solution preparation, sample solution preparation, analysis procedures, result calculation, detection limit, precision and Accuracy, and test report. This standard applies to the determination of PCBs in various types of dye products.

2 Normative references

The following documents are indispensable for the application of this document. For dated reference documents, only the dated version applies to this document. For undated references, the latest version (including all amendments) applies to this document. GB/T 8170-2008 Numerical rounding rules and the expression and determination of limit values

3 Principles of the method

In an ultrasonic bath, use dichloromethane to extract the PCBs in the sample, and use a solid phase extraction column (florisil SPE column) to extract After the eluate is concentrated and fixed to volume, it is separated and determined by gas chromatography-mass spectrometry (GC/MS). The peak area is external standard. Method quantitative. See Appendix A for the types of PCBs and reference parameters for determination.

4 Reagents or materials

4.1 Standard PCBs (see Appendix A). 4.2 Dichloromethane, chromatographically pure. 4.3 n-hexane, chromatographically pure. 4.4 Mixed solvent of n-hexane-dichloromethane. the volume ratio of n-hexane and dichloromethane is 8.2. 4.5 Flori silica cartridge (SPE column). 1000mg, 6mL.

5 Equipment

5.1 Gas chromatography-mass spectrometry (GC/MS). with EI source. 5.2 Chromatographic column. 5% phenyl methyl polysiloxane stationary phase, 30m×0.25mm×0.25μm, or equivalent. 5.3 Analytical balance. accuracy 0.01mg. 5.4 Ultrasonic generator. 5.5 Extractor. 10mL tube with stopper. 5.6 Centrifuge. 4000r/min. ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 24165-2020_English be delivered?

Answer: Upon your order, we will start to translate GB/T 24165-2020_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 24165-2020_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 24165-2020_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.

Question 5: Should I purchase the latest version GB/T 24165-2020?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 24165-2020 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.