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GB 29962-2013 English PDF

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GB 29962-2013: Food additive -- 2-mercapto-3-butanol
Status: Valid

Standard ID	Contents [version]	USD	STEP2	[PDF] delivered in	Standard Title (Description)	Status	PDF
GB 29962-2013	English	189	Add to Cart	3 days [Need to translate]	Food additive -- 2-mercapto-3-butanol	Valid	GB 29962-2013

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Basic data

Standard ID	GB 29962-2013 (GB29962-2013)
Description (Translated English)	Food additive -- 2-mercapto-3-butanol
Sector / Industry	National Standard
Classification of Chinese Standard	C54
Classification of International Standard	67.020
Word Count Estimation	8,890
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: 2 mercapto-3 butanol.

GB 29962-2013: Food additive -- 2-mercapto-3-butanol

---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-2-mercapto-3-butanol National Standards of People's Republic of China National Food Safety Standard Food additive 2-mercapto-3-butanol Issued on. 2013-11-29 2014-06-01 implementation National Food Safety Standard Food additive 2-mercapto-3-butanol

1 Scope

This standard applies to the 2-mercapto-3-butanone for raw materials of food additive 2-mercapto-3-butanol. 2 chemical name, molecular formula, molecular mass and structural formula 2.1 Chemical Name 2-mercapto-3-butanol Formula 2.2 C4H10OS 2.3 formula HO SH 2.4 relative molecular mass 106.18 (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, the specimen was placed inside color than the tube, were visually observed Liquid state Strong aroma pungent odor, diluted there Congxiang, meaty 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 2-mercapto-3-butanol content (sum of the two isomers), w /% ≥ 99.0 Appendix A Refractive index (20 ℃) 1.476 ~ 1.485 GB/T 14454.4 The relative density (25 ℃/25 ℃) 1.010 ~ 1.017 GB/T 11540

Appendix A

Determination of 2-mercapto-3-butanol 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 2-mercapto-3-butanol gas chromatograph (area normalization method) See Appendix B.

Appendix B

Food additive 2-mercapto-3-butanol gas chromatogram (Area normalization method) B.1 food additive 2-mercapto-3-butanol gas chromatogram Figure B.1. 1--2- mercapto-3-butanol isomer 1; 2--2--mercapto-3-butanol isomer 2. Figure B.1 food additive 2-mercapto-3-butanol 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. 120 ℃ constant temperature 10 min; then linear temperature program from 120 ℃ ~ 200 ℃, the rate of 10 ℃/min; most After 200 ℃ heated 20 min. B.2.5 Inlet temperature. 240 ℃. B.2.6 detector temperature. 240 ℃. 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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