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SN/T 4765-2017 English PDF

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US$139.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
SN/T 4765-2017: Food contact materials - Polymers - Determination of hexachloro-1, 3-butadiene - Gas chromatography-mass spectrometry
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
SN/T 4765-2017	139	Add to Cart	3 days	Food contact materials - Polymers - Determination of hexachloro-1, 3-butadiene - Gas chromatography-mass spectrometry	Valid

Similar standards

GB 13432 SN/T 3390 GB/T 23887 SN/T 2203 SN/T 4895 SN/T 4606

Basic data

Standard ID: SN/T 4765-2017 (SN/T4765-2017)
Description (Translated English): Food contact materials - Polymers - Determination of hexachloro-1, 3-butadiene - Gas chromatography-mass spectrometry
Sector / Industry: Commodity Inspection Standard (Recommended)
Classification of Chinese Standard: X08
Word Count Estimation: 6,613
Date of Issue: 2017-05-12
Date of Implementation: 2017-12-01
Regulation (derived from): State-Quality-Inspection-Accreditation (2017) 228
Issuing agency(ies): General Administration of Customs
Summary: This standard specifies the gas chromatography-mass spectrometry method for the determination of hexachloro-1.3-butadiene in polymer materials for food contact materials. This standard applies to the determination of hexachloro-1,3-butadiene content in PP, PE, silicone rubber and rubber.

SN/T 4765-2017: Food contact materials - Polymers - Determination of hexachloro-1, 3-butadiene - Gas chromatography-mass spectrometry

---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.
Food contact materials - Polymers - Determination of hexachloro-1, 3-butadiene - Gas chromatography-mass spectrometry People's Republic of China entry and exit inspection and quarantine industry standards Food contact material Hexachloro-1,3-butyl in polymer materials Determination of diene by gas chromatography-mass spectrometry Released on.2017-05-12 2017-12-01 implementation People's Republic The General Administration of Quality Supervision, Inspection and Quarantine issued Entry-Exit Inspection and Quarantine Industry Standard Food contact material Hexachloro-1,3-butyl in polymer materials Determination of diene by gas chromatography-mass spectrometry China Standard Press Publishing First edition, August.2018

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. Guangdong Entry-Exit Inspection and Quarantine Bureau of the People's Republic of China. The main drafters of this standard. Fang Xingyou, Shao Qiurong, Lin Hai, Li Ju, Duan Bing, Li Yunsong, Ding Xiao, Zhou Minghui, Li Quanzhong. Food contact material Hexachloro-1,3-butyl in polymer materials Determination of diene by gas chromatography-mass spectrometry

1 Scope

This standard specifies the method for the determination of hexachloro-1,3-butadiene in polymer materials for food contact materials by gas chromatography-mass spectrometry. This standard applies to the determination of hexachloro-1,3-butadiene content in PP, PE, silicone rubber and rubber.

2 Method summary

The hexachloro-1,3-butadiene in the sample was extracted with methylene chloride in an ultrasonic bath, and the sample was concentrated by gas chromatography-mass spectrometry. The test is performed, and the whole scan test is used for qualitative determination, and the selected ion is used for external standard method for quantification.

3 reagents and materials

Unless otherwise stated, the reagents used were homogeneously analyzed for pure or higher purity reagents. 3.1 Dichloromethane. chromatographically pure. 3.2 Hexachloro-1,3-butadiene (CAS No.. 87-68-3). purity ≥ 99%. 3.3 Standard stock solution. accurately weigh the appropriate amount of hexachloro-1,3-butadiene standard, and prepare the concentration with dichloromethane (3.1). A standard stock solution of 1000 mg/L is contained in a brown bottle. 3.4 Standard working solution. Accurately absorb the standard stock solution of hexachloro-1,3-butadiene and dilute it with dichloromethane to a concentration of Working solutions of 0.25 mg/L, 0.5 mg/L, 1.0 mg/L, 2.5 mg/L, 5.0 mg/L, and 10.0 mg/L. 3.5 Filter paper. medium speed quantitative filter paper. 3.6 Microporous membrane. 0.45 μm, organic phase.

4 Instruments and equipment

4.1 Gas Chromatography-Mass Spectrometer. equipped with an EI source. 4.2 Analytical balance. Sensitivity 0.1mg. 4.3 Ultrasonic instrument. 4.4 Rotate the evaporator. 4.5 Liquid nitrogen tank. 4.6 Shredder. ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of SN/T 4765-2017_English be delivered?

Answer: Upon your order, we will start to translate SN/T 4765-2017_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 SN/T 4765-2017_English with my colleagues?

Answer: Yes. The purchased PDF of SN/T 4765-2017_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.