SN/T 2184-2008 English PDF

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
SN/T 2184-2008	439	Add to Cart	3 days	Food contact materials. Polymer materials. Determination of terephthalic acid in food simulants. HPLC	Obsolete

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Basic data

Standard ID: SN/T 2184-2008 (SN/T2184-2008)
Description (Translated English): Food contact materials. Polymer materials. Determination of terephthalic acid in food simulants. HPLC
Sector / Industry: Commodity Inspection Standard (Recommended)
Classification of Chinese Standard: X08
Classification of International Standard: 67.250
Word Count Estimation: 11,144
Date of Issue: 2008-09-04
Date of Implementation: 2009-03-16
Quoted Standard: SN/T 2280-2009
Regulation (derived from): 2009 No. 5 (total 113) Chinese industry standard filing Announcements
Issuing agency(ies): General Administration of Customs
Summary: This standard specifies the food simulants terephthalic acid method. This standard applies to food simulants water, 3% acetic acid, 10% ethanol solution, olive oil and isooctane Determination of terephthalic acid.

SN/T 2184-2008: Food contact materials. Polymer materials. Determination of terephthalic acid in food simulants. HPLC

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Food contact materials.Polymer materials.Determination of terephthalic acid in food simulants.HPLC Exit inspection and quarantine industry standard book People's Republic of China Food contact materials - Polymer Food simulants Determination of terephthalic acid High Performance Liquid Chromatography Posted 2008-09-04 2009-03-16 implementation People's Republic of China The State Administration of Quality Supervision, Inspection and Quarantine released

Foreword

The Standard Appendix A, Appendix B, Appendix C, Appendix D, Appendix E are informative appendices. This standard is proposed and managed by the National Certification and Accreditation Administration Committee. This standard by CIQ Shanxi, Shanxi University, People's Republic of China is responsible for drafting. The main drafters of this standard. Song Huan, even GY, Li Huiping, Du Lijun, Qu Jun, Pan Yali, Xue Ping, Yuan Li, Song Jie, Zhao Bao hair, Lin Qin Bao, ZHAO Lin Qiang. This standard is the first release of the entry-exit inspection and quarantine industry standards. Food contact materials - Polymer Food simulants Determination of terephthalic acid High Performance Liquid Chromatography

1 Scope

This standard specifies the food simulants terephthalic acid determination. This standard applies to food simulants water, 3% acetic acid, 10% ethanol, olive oil and isooctane Determination of terephthalic acid.

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. SN/T 2280-2009 Food contact materials plastic plastic specific migration substances restricted substances to foods and food simulants Test methods and the determination of exposure to food simulants and conditions of selection guidelines

3 Method summary

The aqueous food simulants soaking solution directly with a UV detector HPLC instrument measurement; olive oil and isooctane simulated immersion The solution was extracted with dilute sodium bicarbonate solution, extract was acidified with a UV detector with HPLC instrument measurement.

4 Reagents and materials

Unless otherwise noted outside, the reagents were of analytical grade, all required test reagent blank test is performed to ensure that does not contain the analyte and Interference, water is deionized water. 4.1 Methanol. HPLC grade. 4.2 phosphite. 4.3 sodium acetate. 4.4 sodium bicarbonate. 4.5 glacial acetic acid. 4.6 ethanol. 4.7 iso-octane. 4.8 olive oil. 4.9 30g/L aqueous acetic acid. Weigh 15.0g acetic acid (4.5), diluted with water and transferred to 500mL volumetric flask, water volume to Scale. 4.10 aqueous ethanol (10 + 90). Measure 50mL of ethanol (4.6) in 500mL flask with water to volume. 4.11 850g/L phosphorous acid solution. Weigh 85.0g of phosphorous acid, dissolved in water. After cooling to room temperature, add water volume to 100mL. 4.12 sodium acetate buffer solution (pH3.6). Weigh sodium acetate (4.3) 25.0g, was dissolved in 350mL of water, was added 5mL ± 0.1mL Asia Phosphoric acid solution (4.2), with about 50mL glacial acetic acid (4.5), adjust the pH value of 3.6 ± 0.2, dilute to 500mL. Take the above solution 300mL Fluid volume with water to 1000mL. 4.13 1g/L sodium bicarbonate solution. Weigh 0.1g of sodium bicarbonate (4.4), add water to 100mL, dissolved shaking. 4.14 aqueous acetic acid (1 + 1). ice acetic acid and water mixed in a volume ratio of 1.1. ......

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