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SN/T 1111-2002 English PDF

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SN/T 1111-2002: Determination of glycerin content. Capillary gas chromatography
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PDF similar to SN/T 1111-2002


Standard similar to SN/T 1111-2002

QB/T 1994   QB/T 1224   HJ 458   SN/T 4947   SN/T 4948   SN/T 4769   

Basic data

Standard ID SN/T 1111-2002 (SN/T1111-2002)
Description (Translated English) Determination of glycerin content. Capillary gas chromatography
Sector / Industry Commodity Inspection Standard (Recommended)
Classification of Chinese Standard Y43
Word Count Estimation 8,888
Date of Issue 2002-05-20
Date of Implementation 2002-11-01
Issuing agency(ies) General Administration of Quality Supervision, Inspection and Quarantine of the People Republic of China
Summary This standard specifies the glycerol content of the gas chromatographic method. This standard applies to the mass fraction of not less than 95 % of the pharmaceutical grade, industrial grade saponification glycerine and synthetic glycerin. Applying the provisions of the standard glycerol content determined chromatogram obtained when used to detect ethylene glycol and diethylene glycol, glycerin as the main raw materials such alternatives or dopants.

SN/T 1111-2002: Determination of glycerin content. Capillary 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.
Determination of glycerin content.Capillary gas chromatography People's Republic of China entry and exit inspection and quarantine industry standards Determination of glycerol content Capillary gas chromatography People's Republic The General Administration of Quality Supervision, Inspection and Quarantine issued

Foreword

Appendix A of this standard "Qualitative Identification Method" is a normative appendix. Appendix B “Typical Chromatograms” of this standard is an informative annex. This standard is proposed and managed by the National Certification and Accreditation Administration. This standard was drafted. Shanghai Entry-Exit Inspection and Quarantine Bureau of the People's Republic of China. Drafters of this standard. Sun Dunwei, Li Chen. This standard was first published. Determination of glycerol content Capillary gas chromatography  range This standard specifies the method for the determination of glycerol content by gas chromatography. This standard applies to pharmaceutical grade, industrial grade saponified glycerin and synthetic glycerin with a mass fraction of not less than 95%. The chromatogram obtained by measuring the glycerin content by the method specified in this standard can be used to detect ethylene glycol and diethylene glycol. A glycerin substitute for the raw material or such a dopant. The terms in the following documents become the terms of this standard by reference to this standard. All dated references, followed by all Modifications (not including errata content) or revisions do not apply to this standard, however, parties to agreements based on this standard are encouraged to study Is it possible to use the latest version of these files? For undated references, the latest edition applies to this standard. Standard column for JB5225 gas chromatograph test  Determination method Hey.  Method summary Based on qualitative detection and moisture content determination, the sample is diluted with methanol and is equipped with a capillary of a flame ionization detector (FID). On the tube gas chromatograph, quantitative determination was performed using a normalized method of dehydration. Hey.  reagent Methanol. Analytically pure. Hey.  Instrument Gas chromatograph with flame ionization detector; Chromatography data processor; Column. cyanopropyl phenyl (50% by mass) - dimethyl siloxane (50% by mass) Copolymer hollow column. 30 m × 0.32 mm (id), 0.25 μm; or the same type of column; Micro syringe. 10 μL. Hey.  Measurement procedure Weigh 0.10 g of glycerol sample, place it in a 10 mL volumetric flask, dilute to the mark with methanol (3.2), shake well and set aside. Hey. Hey.  determination Hey. Hey. Hey.色谱 Chromatographic conditions c) range × attenuation. 1 × 10-2;

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