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GB 29964-2013 English PDF

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GB 29964-2013: Food additive -- Dimethyl sulfide
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GB 29964-2013English189 Add to Cart 3 days [Need to translate] Food additive -- Dimethyl sulfide Valid GB 29964-2013

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Basic data

Standard ID GB 29964-2013 (GB29964-2013)
Description (Translated English) Food additive -- Dimethyl sulfide
Sector / Industry National Standard
Classification of Chinese Standard C53
Classification of International Standard 67.020
Word Count Estimation 8,867
Regulation (derived from) China Food & Drug Administration [2013] No. 234, November, 1, 2013
Issuing agency(ies) National Health and Family Planning Commission of the People's Republic of China
Summary This standard applies to food additives: dimethyl disulfide.

GB 29964-2013: Food additive -- Dimethyl sulfide

---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 additive-Dimethyl sulfide National Standards of People's Republic of China National Food Safety Standard Food additive dimethyl disulfide Issued on. 2013-11-29 2014-06-01 implementation National Food Safety Standard Food additive dimethyl disulfide

1 Scope

This standard applies to the methyl mercaptan or methyl chloride as raw materials obtained food additive dimethyl sulfide. 2 chemical name, molecular formula, molecular mass and structural formula 2.1 Chemical Name Dimethyl disulfide Formula 2.2 C2H6S2 2.3 formula SS 2.4 relative molecular mass 94.19 (according to 2007 international relative atomic mass)

3 Technical requirements

3.1 Sensory requirements Sensory requirements shall comply with the requirements of Table 1. Table 1 Sensory requirements Project requires test methods Colorless to pale yellow color of the sample was placed inside color than the tube, were visually observed Liquid state Aroma of onion-like aroma GB/T 14454.2 3.2 Physical and Chemical Indicators Physical and chemical indicators should be consistent with the provisions of Table 2. Table 2. Physical and chemical indicators Item Index Test Method Dimethyl disulfide content, w /% ≥ 97.0 Appendix A Refractive index (20 ℃) 1.522 ~ 1.527 GB/T 14454.4 The relative density (25 ℃/25 ℃) 1.058 ~ 1.065 GB/T 11540

Appendix A

Determination of dimethyl disulfide content A.1 instruments and equipment A.1.1 chromatograph. According to GB/T 11538-2006 provisions in Chapter 5. A.1.2 Column. capillary column. A.1.3 Detector. Hydrogen flame ionization detector. A.2 Determination Area normalization method. According to GB/T 11538-2006 10.4 Determination. A.3 repeatability and results are shown According to GB/T 11538-2006 provisions in 11.4, shall comply with the requirements. Food Additives dimethyl disulfide gas chromatograph (area normalization method) See Appendix B.

Appendix B

Food additive dimethyl disulfide gas chromatogram (Area normalization method) B.1 food additive dimethyl sulfide gas chromatogram Figure B.1. Figure B.1 food additive dimethyl sulfide gas chromatogram B.2 operating conditions B.2.1 Column. capillary column, length 30 m, an inner diameter of 0.25 mm. B.2.2 stationary phase. polyethylene glycol. B.2.3 film thickness. 0.25 μm. B.2.4 chromatography oven temperature. 80 ℃ constant temperature 10 min; then linear temperature programmed from 80 ℃ ~ 200 ℃, the rate of 10 ℃/min; final Heated 10 min at 200 ℃. B.2.5 inlet temperature. 230 ℃. B.2.6 detector temperature. 230 ℃. B.2.7 Detector. Hydrogen flame ionization detector. B.2.8 carrier gas. nitrogen. B.2.9 pre-column pressure. 60 kPa. B.2.10 Injection volume. about 0.2 μL. B.2.11 split ratio. 100︰1.

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