This standard specifies the requirements, test methods, inspection rules and marking, packaging, transportation, storage and shelf life of 2,3-dimethylpyrazine. This standard is applicable to the analysis and evaluation of the quality of 2,3-dimethylpyrazine obtained by chemical synthesis with ethylenediamine and diacetyl as the main raw materials. It is also applicable to the analysis and evaluation of the quality of 2,3-dimethylpyrazine added to food. QB/T 2750-2005 2,3-Dimethylpyrazine QB/T2750-2005 Standard download decompression password: www.bzxz.net

ICS 71.100.60
Classification number: Y41
Registration number: 16759-2GG6
Light Industry Standard of the People's Republic of China
QB/T 2750—2005
2,3-Dimethyl pyrazine
Published on September 23, 2005
National Development and Reform Commission of the People's Republic of China Implemented on May 1, 2006
QB/T2750—2005
Technical standard Technical requirements The chemical products containing 2,3-dimethylpyrazine in FCV of the United States meet the positive CFA requirements of similar products (the JECFA code of "2,3-dimethylpyrazine" is 765, but there are no specific requirements). The test method adopts the test method of fragrance permeation , the test method is mostly adopted for S0 standard tour. Appendix A of this standard is an informative appendix, and the standard is proposed by China Light Industry Federation. The standard is under the jurisdiction of the Cosmetics Standardization Technical Committee, and this standard is jointly developed by Shandong Province Tengzhou Wutong Fragrance Science Co., Ltd. and Shanghai Fragrance Research Institute. The main drafters of this standard are Shi Jun, Xu Yi, Jin Qilu. This standard is published for the first time.
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2,3-Dimethylpyrazine
QB/T 27552C05
This standard specifies the requirements, test methods, inspection rules and marking, packaging, transportation, and traceability of 23-dimethoxy-2-pyridine paints. This standard uses the chemical composition of the 23-dimethoxy-2-pyridine paints obtained by the standard as the main raw materials. The 23-dimethoxy-2-pyridine paints are analyzed and evaluated for the type of 23-dimethoxy-2-pyridine paints used in the production of food additives. 2 Normative references
The following references become the clauses of this standard after the expiration of this standard. Any non-application documents of the current period, all subsequent amendments (excluding the revised version) or model versions are not applicable to this standard. However, the latest versions of these documents are used. For any referenced documents of the current period, the latest versions are the following: GB/T11539-1989 Method for analysis of gas chromatography with gas column packing GRT11540 Single and complete No Determination of relative density GB/14454.2 Evaluation method for quaternary gases of spices
GB/T14454.4 Determination of refractive index of spices 3 Product chemical name, formula, structural formula, scientific name of molecular weight: 2.3 Diisocyanate
Molecular formula: CllN
Content:
1 Molecular weight: 108.14 (restored to the 1987 international original quantity) 4 Requirements||t 4.1 Silky: Colorless and light yellow liquid 4.2 Aroma: With a strong smell, the sample can be re-scented. 4.3 Refractive index (25℃/25): 1.0001.0224.4 Refractive index (20℃): 1.5050~[.50904.5 Quantity (0℃. Identification 95.4
5 Test method
5.1 Determination of color
Put the sample in a chamber and observe it with a daily measurement. 5.2 Evaluation of aroma
Micro determination according to GB/T14454.2: When the reporting department does not have standard samples for transportation, the enterprise technology and original inspection department shall follow the GB/T 2750-2335 standard. 5.3 Determination of relative free matter
Micro determination
GB/T 1154 standard. 5.4 Determination of new and firm
G1 standard. 5.5 Determination of positive content
E.5.1 Instrument
gold discussion, record party and micro handling
coal GB/T 11539-185 clause 5 is, 5):
--s..: 2m--3m,7nm-4:mn.
：1=6-20M.5%%Ch:rrkurbWAwIMCS50~30日上9划器
Hydrogen hexavalent ion space detector,
5.5.2 Change conditions
color words,: dose-F slide small 240, speed 5min: sample 1:230
inspection format: 2.
Positive:: technology B11539-1089 10.4 force method 2.3-1: 5.53 total system and structure meter expression
according to (13: 1539-1489 11.4 specification operation: should meet the requirements of the platform, 2 forbidden village chromatogram method) limit (capital reduction
6 inspection rules
6.13-basic comparison of sound production control test liability, should guarantee the mountain) 2 product book signed in accordance with the requirements of this standard, can be approved! The quality platform should show the color state, this, the string start inspection date, and the relative rate, the so-called planning inspection share! The mother quarter starts the first test
2 acceptance single center as the right to issue a half-term test basis for each product, and the length meets the standard requirements. Label, method to collect more at one time, different batch numbers are accepted separately
63 "our sample method: etc. receive the package! 1, 310, 2, 100, three increase in the receiver to each person to decorate! All create a certificate 10. The whole sample will be taken in the whole device, no more than two economic operations are required to reduce the pipe half through the middle, and the certificate will be saved. Although the work is complicated, the method: production! Name, product name, production industry, this!, micro and or choose this. Edition inspection, potential bottle diagram storage for reference, 6.4 If the next unified US has a control method to replace the detailed requirements, it can be combined with the cattle factory currency to choose the method to test. If the re-inspection results are satisfactory, the classic north and small can be collected. 5 For the production and packaging, the double family can decide my inspection gift through 7 signs, packaging, transportation, purchase, storage and warranty plan 7.1 label
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QH12750-2005
Product package should include: product name, production place, batch number, net content, production date and shelf life. If there are special requirements, please contact us. 7.2 Packagingwww.bzxz.net
23 Twenty-eight pounds, clean the bottle, food grade plastic or glass, please pack it in the following ways: 7.3 Transportation
Consider light transportation, avoid 1.1. Do not mix with other products, semi-original materials, or mix them. , and the product shall be locked in a large part by law.
7.4 Storage
The product shall be placed in a dry and ventilated environment, away from air-bearing beams, and away from large sources. 7.5 Shelf life
Under the conditions of production, packaging integrity, and six-year delivery, the shelf life of western products is one year B/12750-2005
Appendix A
(Informative Appendix)
2.3 Typical gas chromatogram of diisopropylpyrazine
(Wendong-Northern Transport)
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