GB 29973-2013 English PDF

Standard Briefing:

Stadard ID: GB 29973-2013
Stadard Title: Food additive -- 2-isopropyl-4-methyl-thiazol-
Price (USD): 189
Lead day (Deliver True-PDF English version): 3 days
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB 29973-2013	189	Add to Cart	3 days	Food additive -- 2-isopropyl-4-methyl-thiazol-	Valid

Basic Data:

Standard ID	GB 29973-2013 (GB29973-2013)
Description (Translated English)	Food additive��2-isopropyl-4-methyl-thiazol-
Sector / Industry	National Standard
Classification of Chinese Standard	C54
Classification of International Standard	67.020
Word Count Estimation	8,812
Issuing agency(ies)	National Health and Family Planning Commission of the People's Republic of China
Summary	This standard applies to food additives: 2 isopropyl-4 methyl thiazole.

Similar Standards:

GB 31617   GB 28316   GB 28314   GB 29968   GB 29969   GB 29963   

Contents, Scope, and Excerpt:

GB 29973-2013 Food additive-2-isopropyl-4-methyl-thiazol- National Standards of People's Republic of China National Food Safety Standard Food Additive 2-isopropyl-4-methylthiazole Issued on. 2013-11-29 2014-06-01 implementation National Food Safety Standard Food Additive 2-isopropyl-4-methylthiazole

Scope

This standard applies to the isobutyramide as the main raw materials obtained food additive 2-isopropyl-4-methylthiazole. 2 chemical name, molecular formula, molecular mass and structural formula 2.1 Chemical Name Formula 2.2 C7H11NS 2.3 formula 2.4 relative molecular mass 141.24 (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 yellow color than the sample is placed inside the color tube, were visually observed Liquid state Green fragrant aroma, fragrant herbs, vegetables and fragrant, earthy 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-isopropyl-4-methylthiazole content, w /% ≥ 98.0 Appendix A Refractive index (20 ℃) 1.480 ~ 1.502 GB/T 14454.4 The relative density (25 ℃/25 ℃) 0.997 ~ 1.007 GB/T 11540

Appendix A

Determination of 2-isopropyl-4-methylthiazole 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-isopropyl-4-methylthiazole gas chromatograph (area normalization method) See Appendix B.

Appendix B

Food Additive 2-isopropyl-4-methylthiazole gas chromatogram (Area normalization method) B.1 food additives 2-isopropyl-4-methylthiazole gas chromatogram Figure B.1. Figure B.1 food additives 2-isopropyl-4-methylthiazole 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. 110 ℃ constant temperature 10 min; then linear temperature program from 110 ℃ ~ 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. ......