This standard specifies the requirements, test methods, inspection rules and marking, packaging, transportation, storage and shelf life of 4-methyl-5-(β-hydroxyethyl)thiazole. This standard is applicable to the analysis and evaluation of the quality of 4-methyl-5-(β-hydroxyethyl)thiazole prepared by chemical synthesis with thioformamide and bromoacetylacetyl alcohol as the main raw materials. It is also applicable to the analysis and evaluation of the quality of food additive 4-methyl-5-(β-hydroxyethyl)thiazole. QB/T 2753-2005 4-Methyl-5-(β-hydroxyethylthiazole) QB/T2753-2005 Standard download decompression password: www.bzxz.net

IrS 7t. 100.60
Classification number: y41
Registration number: 16762-2006
Light Industry Standard of the People's Republic of China
QB/T2753-2005
4-Methyl-5-(beta-hydroxyethyl)thiazole
4-Methyl-5-(beta-hydroxyethyl)thiazole2005-09-23 Issued
National Development and Reform Commission of the People's Republic of China Implemented on 2006-05-01
QR/I2753-2005
The technical requirements of this standard are in accordance with the 4-quantity standard formulated by the Joint Expert Committee on Food Detergents (ECF) under the Codex Alimentarius Commission (CAC) 5--reduced amount) azole (code is consistent with JECFA031. The test method adopts the pressure transfer general test piece method, and most of the general test methods adopt IS related standards.
The time record of this standard is an informative appendix.
This standard was proposed by the Shanxi Light Industry Federation in 2006. It was promoted at the meeting of the Technical Committee for Standardization of Flavors and Cosmetics. This standard was jointly developed by Dongguan Wudiao Fragrance Co., Ltd. and Shanghai Flavor Research Institute. The main drafters of this standard are Wang Jun, Xu Pin, Jin Qifan. This standard is published for the first time.
1 Obtained
4-Methyl-5-(8-hydroxyethyl)thiazole
QB/T2763—2006
This standard is specified as 4-methyl-5-(8-hydroxyethyl)thiazole The requirements, test methods, inspection regulations and specifications of azoles, packaging, transportation, storage and shelf life.
This standard is applicable to the analysis and evaluation of the quality of 4-methyl-5-hydroxy-2-propanediol produced by chemical synthesis with thioamine and 1,2-dimethyl-2-propanediol as the main raw materials. It is also applicable to the evaluation of the quality of food additives such as 4-methyl-5-(8-hydroxyethyl)-2-propanediol. 2 Normative referenced documents
The clauses in the following documents become clauses of this standard through reference in this standard. For any dated document, all copies (excluding the contents with lapses) or revised versions of the document are not applicable to this standard; however, the latest versions of these documents may be used for consultation by the parties who have reached an agreement based on this standard. For any undated referenced document, the latest version shall apply. Standard. CB/T11539-1989 General method for precise filling silica gas chromatography GB/T11540 Determination of relative concentration of isolated and synthetic spices GB/T14454.2 Method for evaluating the aroma of spices GB/T14454.4 Determination of the refractive index of spices G/T14457.4 Determination of the acid point of isolated and synthetic spices 3 Product chemical name, molecular formula, structural formula, molecular weight Chemical name: 4-amino-5-(F-hydroxybenzoic acid, CHONS
Abbreviation:
CHCHiOH
Relative molecular weight: [43.21 (according to 18? International standard 4 requirements
4.1 Appearance: colorless to pale viscous oily liquid, will turn black when decomposed. 4.2 Fragrant, like beef, nut aroma,
4.3925/25℃, 1.196--1.210
44% (20 ppm): 1.5400~1.55604.53.0.
4.6 Contains GC.%: 96.0.
5 Test method
5.1 Color determination
Place the sample in a container and observe by H method: 1
QB/ T27532005
52 Assessment of the quality of the gas
4454. When the national soil management department cannot certify the standard product, the industry technology and quality department shall comply with the standard
5.3 Column for determination of the temperature
according to 40:
54 Refractive index to determine the nuclear B14452.4. 5.5 Determination of acidity
.4 Specifications
5. 6 Determination of polyurethane
5.6.1 Safety
a) Instrument, recorder in the hall
I GH53-939: year
. Sample: length 2m~-3m, inner 73mm~4murl:PIAi-20M. S%~I0%T Curus01b WAWMCS(0--80H on!
Micro-length divider.
5.6.2 operation
Product h: our product!, rate.
++++ .: 20Y..
Pulser: 25℃
on the first-class
33nl.min--3nmt./mim
mountain-chemical: according to GB15.33-19890. fixed method 4-base-5- (- and ethylene containing car weight explicit and structure Hao said
GBT1153 one in 11. send, should be in accordance with my effectwww.bzxz.net
4-its-5- (-strange size azole typical cabinet color disappear to accumulation! Chemical) Lu Lu (data department total! 6 gold test now rules
614-middle evil-5-will be the case point H4 pre-special identification non-excellent inspection, benefit, should guarantee! Early production I will meet the standard, hold the shot! Product quality evaluation, fast, no steam, for the factory inspection, and the folding rate heart type inspection item H: 4 academic support 6.3 Attack fence: batch contains 2 small and medium-sized, full deposit: 3100 pieces, take 2 pieces: 100 pieces, increase by 3% per month, price per unit, annual average, 0m.-100m: all the oil samples must be divided into three parts, and the samples must be installed separately. The compensation parts are real, the light barrier is guaranteed, and the "standard" must be "certain, the cattle production! The product is called silk, the production, the teaching or sample period is "tight, the parts service is another 4. If you feel the micro result for the profit standard layer, you will ask the production! More moist double the test fence, there is a long whole knot called the fragrance, the night batch product purple test
QB/T 27532005
6.5 Supply and demand, if there is any objection to the product quality record, it can be resolved through agreement or by the legal inspection agency. The product packaging should clearly indicate: "product name, manufacturer, customer and address, trademark, batch number, storage period and shelf life"! If there is any special requirement, we can negotiate with you. 7.2 Packing: smooth and mixed bottles, food grade bottles! Line wind period, or according to customer requirements
7.8 Transportation
In the process of simple loading and unloading, avoid mud loading, mixing, leaf deficiency and other harmful substances.
7.4 Problems
In the process of drying and ventilation, avoid impurity pollution from two sources. 7.5 Quality period
In accordance with the requirements, the packaging is complete. Under the condition of not being advertised, the shelf life of this product is one year. QB/T2753
Appendix A
(Informative Appendix)
4. Typical gas color tone diagram of methyl 5
(-hydroxyethyl) thiazole (integral whitening method)
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