GB/T 23296.11-2009 English PDF

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GB/T 23296.11-2009: Food contact materials -- Determination of ethylene oxide and propylene oxide in plastics -- Gas chromatography
Status: Obsolete

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 23296.11-2009	319	Add to Cart	3 days	Food contact materials -- Determination of ethylene oxide and propylene oxide in plastics -- Gas chromatography	Obsolete

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Basic data

Standard ID: GB/T 23296.11-2009 (GB/T23296.11-2009)
Description (Translated English): Food contact materials -- Determination of ethylene oxide and propylene oxide in plastics -- Gas chromatography
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: C53
Classification of International Standard: 67.250
Word Count Estimation: 8,888
Date of Issue: 2009-03-31
Date of Implementation: 2009-09-01
Regulation (derived from): National Standard Approval Announcement 2009 No.3 (Total No.143)
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary: This standard specifies the determination of plastics and propylene oxide, ethylene oxide monomer content. This standard applies to the determination of ethylene plastics oxide and propylene oxide monomer content. Determination of ethylene oxide and propylene oxide monomer plastics lower limit are 0. 2 mg/kg.

GB/T 23296.11-2009: Food contact materials -- Determination of ethylene oxide and propylene oxide in plastics -- Gas chromatography

---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. Determination of ethylene oxide and propylene oxide in plastics. Gas chromatography ICS 67.250 C53 National Standards of People's Republic of China Food contact materials Plastics - Determination of ethylene oxide and propylene oxide content Gas chromatography Posted 2009-03-31 2009-09-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

The reference to the European standard technical specification CEN/T S13130-22.2005 "food contact plastic materials and products was limited Quality - Part 22. Plastic ethylene oxide and propylene oxide Determination "(in English) to develop. Appendix A of this standard is an informative annex. This standard was proposed by the National Certification and Accreditation Administration Committee. This standard by the National Import and Export Food Safety Inspection Standardization Technical Committee (SAC/TC445) centralized. This standard was drafted. People's Republic of China Hubei Exit Inspection and Quarantine, Chinese Academy of Inspection and Quarantine, the State Environmental Protection production Product Quality Supervision and Inspection Center. The main drafters of this standard. Guo Jian, Ling about Tao, Chen Zhifeng, Hu Zheng group, Li Hui, Zhang Yan, Hude Cong, Cui Hairong, wind Yang, Cheng Ye, Zou Xianmei, Chencao Qi, Xu Xinsheng. Food contact materials Plastics - Determination of ethylene oxide and propylene oxide content Gas chromatography

1 Scope

This standard specifies the method for the determination plastics ethylene oxide and propylene oxide monomer content. This standard applies to plastics ethylene oxide and propylene oxide measured monomer content. Determination of ethylene oxide and propylene oxide monomer plastics are the lower limit of 0.2mg/kg.

2 Normative references

The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard. GB/T 6682 analytical laboratory use specifications and test methods (GB/T 6682-2008, ISO 3696. 1987, MOD) GB/T 23296.1 plastic food contact materials in plastics restricted substances test substance specific migration into foods and food simulants Experience and determination method and conditions of exposure to food simulants Guide selection Principle 3 Plastic ethylene oxide or propylene oxide by N, N- dimethylacetamide (DMAC) extracted using headspace sampling, the column in the ring Ethylene oxide or propylene oxide with an internal standard ether and other components separation, detection with hydrogen flame ionization detector. Draw standard by standard addition method Standard curve, within the standard method.

4 Reagents and materials

Unless otherwise specified, water GB/T 6682 provided a water, reagents were of analytical grade. 4.1 ethylene oxide standards. purity of greater than 99%. 4.2 propylene oxide standards. purity of greater than 99%. Ether 4.3 Standard. purity of more than 99.5%, the chromatogram with ethylene oxide or propylene oxide with the same retention time of the impurity peak area not Exceed 1%. When the purity is greater than 99.9%, the chromatogram of ethylene oxide or propylene oxide with the same retention. 4.4 N, N- dimethylacetamide (DMAC) Between the impurity peak area shall not exceed 1%. 4.5 ethylene oxide standard stock solution (2mg/mL ~ 6mg/mL). amount of 50mLDMAC (4.4) in 50mL vial (5.3), and Weighed (accurate to 0.0001g). To join in the vial 0.1g ~ 0.3g of ethylene oxide (4.1), immediately sealed Mix thoroughly weighed (Accurate to 0.0001g). Calculate the actual concentration of ethylene oxide standard stock solution. Solution should be protected from light at 4 ℃ sealed storage, valid for Two months. 4.6 propylene oxide standard stock solution (1mg/mL). Weigh 50mg (accurate to 0.0001g) of propylene oxide (4.2) in a pre-filled with 30mL DMAC of 50mL volumetric flask, using DMAC volume. Calculate the actual concentration of propylene oxide standard stock solution. The solution was stored Article Member with 4.5. 4.7 ethylene oxide intermediate standard solution (0μg/mL ~ 40μg/mL). amount of each 8mLDMAC to six 10mL volumetric flask, Then were added with a micro-syringe (5.2) an amount of ethylene oxide standard stock solution (4.5), the DMAC volume. Ethylene oxide standard stock ......

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