This standard specifies the requirements, test methods, inspection rules and marking, packaging, transportation, storage and shelf life of 2-acetylthiazole. This standard is applicable to the analysis and evaluation of the quality of 2-acetylthiazole obtained by chemical synthesis with 2-bromothiazole as the main raw material. It is also applicable to the analysis and evaluation of the quality of food additive 2-acetylthiazole. QB/T 2752-2005 2-acetylthiazole QB/T2752-2005 Standard download decompression password: www.bzxz.net

CS7110C.60
Classification number: Y41
Ticket number: 167612006
Light Industry Standard of the People's Republic of China
QB/T2752—2005
2-Acetylthiazole
2005-09-23 Issued
National Development and Reform Commission of the People's Republic of China 2006-05-01 Implementation
QR/T2752—2005
Standard Technical Requirements for Wood Products (Technical Requirements for 2-Acetylthiazole) (hereinafter referred to as JECFA 141) was formulated by the Joint Expert Meeting of Food Additives (JFCFA) under the Codex Alimentarius Commission (CAC). The test method adopts the general test method of fragrance, and the applicable test method is mostly from ISO scientific standards. The technical standards are technical standards except for the technical standards. This standard is proposed by China Light Industry Federation and approved by the National Fragrance and Cosmetics Standardization Technical Committee. This standard is drafted by the Fragrance Research Institute of Tengzhou Zhaotong Fragrance Co., Ltd., Shandong Province. The main authors are: 1 Jun, Xu Yi, Jin Qiqiu: This standard is first issued in Hong Kong.
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1 Specification
2-Acetylthiazole
QB/T27522055
The standard specifies the requirements, test methods, inspection rules and marking, packaging and transportation of 2-acetylthiazole. It is applicable to the quality analysis and pricing of 2-dichlorothiazole prepared by chemical synthesis with 2-chlorothiazole as the main raw material, and is also suitable for analyzing and evaluating the quality of 2-acetylthiazole in food additives. 2 Normative references
The clauses in the following documents become the clauses of this standard through the application of this standard. For the referenced documents with a sufficient date, all the subsequent revisions (excluding the contents of the revisions) or revisions are not applicable to this standard. However, the parties to the agreement based on this standard are encouraged to use the latest versions of these documents. For all the cited documents of the period, the latest version of the applicable standard is: GB/11539-1989 essential oils filled with liquid chromatography method GB/T11540 determination of relative density of isolated and combined essential oils GB/T14454.2 aroma evaluation method of essential oils GB/T11454.4 determination of refractive index of essential oils 3 Product chemical name, molecular formula, structural formula, relative molecular mass Chemical name: 3-ethyl oxadiazole Formula: CHIONS Structural formula: Relative molecular weight: 127.17 (according to the international atomic weight in 1980) 4.1 Appearance: colorless to yellow oily transparent liquid. 4.2 Aroma: with cocoa, corn, flour-like aroma. 4.3 Density 250/25: 1.2251.229
4.4 Radiation (20℃): 1.5430-1.5500. 4.5 Actual weight (CC) 07.0
5 Test method
5.1 Verification of color
Put the sample in a colorimetric tube and observe it by the film measurement method. 5.2 Evaluation of aroma
According to the provisions of GB/14454.2: When the national regulatory department provides standard samples, the China Enterprises, the Quality Control Department and/or the customer shall jointly determine the standard samplesbZxz.net
QB/T 27622005
. 3 Determination of relative accuracy
According to the provisions of CB/T11.540.
5.4 Determination of refractive index
B/T: 4454.4 2.
5.5 Content is determined
5.5.1 Instrument
a) Color hair, core collection and microprocessing unit
(DT1391989 No. 5 standard element.
i.23 inner 34r
surrounding: P20M.5%-1(% coating Jhor:ubWAWMCS:6080H.Jc) Detector
machine fire, chemical detector.
5.b.2 Change the working strip
fluidity Ruiku temperature from 80℃: 240. Rate m. Sample: 250.
heat detection fee: 2300.
b: first stream: upper
a 20mL/mm*-30mT.r.
Double is the method
and the chemical: table: T: 1539-1989+10.4 designated point method to measure 2-ethylene content ≥ store 5.5.3 single female students and knot meter representation
according to GB11534-15X11.4 frequency determination, the requirements of the parts meet. 2 questions high half industry benefit gas non-negative green map (mountain accumulation naturalization method) see the city A (capital stock Sheng!, 6 string test observation||tt| |6.12-7 change the base to sit should be mountain benefit two clean inspection department of capital, production virtual supply near also "a product all chemical synthesis technology standard plan requirements heart! Product insurance block times, gas, including for call! Price, shoot happy need, discount time some for risk pre-10, each pregnancy point inspection times,
2 inspection special single this right according to the original deep strict our guests production age control room receive product truck whether it meets the standard of the cloud, each batch of capital: different card upgrade sinking monitoring
6.3 method, each package table 2, pull: 3~1 00 sex composition: 1% of the increase in the cost of blood package purchase deduction 50100, the sample will be fully decorated in the Ze single learning within the limit of the purchase into two warm steam clean bone three rate device, avoid the long in the soil, label, standard: cattle heart factory, product name, production H ratio, North number, total period of hope. A bottle of proofreading hall, staff version of confidential. 8.42 years of concentrated production, carbon block standard in line with the year standard, the following Yuntong production plant transport new joint 6.5 When the two parties produce the same product, both parties shall set up a legal inspection agency to handle the problem. 7.1 Product handling instructions: strict record, trademark, batch number, purity, warranty period, license number, etc. If the ordering unit has special requirements, they can contact the production meeting and write an agreement. 1.2 Packing plan QB/T 2752-2006 2-B Vegetables should be packed in clean bottles without impurities, and should be packed according to user requirements. 7.3 During transportation, the products should be packed lightly to prevent rain before delivery. They should not be mixed with toxic and toxic substances, and should be transported in a timely manner. 7.4 The products should be stored in a cool, well-ventilated warehouse to reduce impurities and keep away from fire. 7.5 The shelf life shall be completed in accordance with the production regulations and the packaging table. In the case of wood, the shelf life of the final product is QB/T 2752-2005
Appendix A
(Informative Appendix)
Typical gas chromatogram of 2-acetyl oxadiazole
(Leaf Accumulation Method)
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