This standard specifies the technical requirements, test methods, inspection rules and marking, packaging, transportation and storage of coumarin. This standard applies to coumarin produced by chemical synthesis using salicylaldehyde and acetic anhydride as raw materials. QB/T 2544-2002 Coumarin QB/T2544-2002 Standard download decompression password: www.bzxz.net

CS71.100.60
Classification No. Y41
Registration No.: 10849-2002
Light Industry Standard of the People's Republic of China
QB/T2544-2002
Replaces QB/T3761-1990
Coumarin
Coumarin
Published on 2002-09-21
State Economic and Trade Commission of the People's Republic of China 2002-12-01 implementation
QB/T2544—2002
This standard is effective from the original national standard G8798—[988] (this standard will be temporarily implemented as the national standard number QB/3761—1999 [1999112 document number. The content remains unchanged) as follows: This standard is equivalent to the American Precision Industry Association standard ANn.21. The technical indicators of this standard are based on the relevant standards of the National Essential Oil Association EUA No. 201 "Fragrance", which is a general test method for testing seasonal materials. Most of the existing test methods are equivalent to the relevant ISO standards. This standard is issued by the National Essential Oil Association and is promoted by the National Essential Oil Association. This standard is responsible for the Shanghai Fragrance Cosmetics Association and Shanghai Textile Chemical Co., Ltd. The original owners are: Xu Yi, Xu Cai, Mao Haifang. This international standard was issued by the National Light Industry Association and was issued by the National Light Industry Association. Q37611999 "Coumarin". YYKANrKAca=
1 Scope
Coumarin
QB/T 2544—2002
This standard specifies the technical requirements, test methods, inspection rules and marking, filtration, transportation, storage, and use of coumarin obtained by chemical synthesis with water as raw materials, alcohol and ethyl acetate as raw materials. 2 Normative references
The clauses in the following documents are the clauses of this standard through the reference points of this standard. All the referenced documents, their accompanying corrections (excluding the contents of the period) or revised versions are not applicable to the technical standards, however, the use of these documents by the third party is not damaged by the inspection and inspection method: All the documents with no period are the versions applicable to the H Dingmu standards. GU/1445 4.2-1993 Determination of aroma of spices GB/T144±4.31993 Determination of the solubility of spices in single and combined spices GB/T14457.3-1993 Melting point determination of single and synthetic spices 3 Chemical name, molecular formula, structural formula, molecular weight Chemical name, aromatic formula, CHO CHO CHO Formula: 146.15 (according to 1985 atomic weight) 4 Requirements 4.1 Light color: crystalline color: 4.2 Aroma: fresh, fresh black bean-like aroma 4. 3 Solubility (25°C): 1g of the whole solution was dissolved in 15mL of 95% alcohol. 4.4 Melting point c: 269.0°C 5 Test method Determination of color and appearance See GB/T 14454.3-1993, 5.2 Evaluation of gas See GB/T 14454.2-1993 QB/T 2544-202 5.3 Determination of solubility (25°C) J_ GR/T 14457.1-1993.
5.4 Determination of melting point
FGB/T14457.3—1992. bZxz.net
6 Inspection rules
6.1 The inspection department of the manufacturer shall be responsible for the inspection and supervision. The manufacturer shall provide a certificate of conformity with the requirements of this standard: each product shall be accompanied by a certificate of conformity, including: product name, production date, batch number, trademark, product quality certificate and product quality certificate of conformity with this standard. 6.2 The acceptance unit shall inspect the quality of the products received in accordance with the various provisions of this standard to see if they conform to the requirements of this standard. Inspection shall be conducted once at each step, and acceptance shall be conducted in stages without batch number.
6.3 Sampling method: Take 10 or less samples from each package: 3% if more than 100 samples are collected separately. Take 50k~100 samples from each package through a sampling tube, inject into a sampler and mix evenly: take two of them by quartering and put them into two bottles at the current station, dry and discard the residual sand, and indicate: production name, production date, batch number, number and sample size. One bottle shall be inspected on the same day, and one shall be retained.
6.4 If the whole package is collected, If any of the indicators do not meet the standard, the batch of products may be inspected and tested. If there are still some unqualified items in the inspection, the batch of products cannot be accepted. 6.5 When the product quality is not met, the two parties can reach an agreement or conduct statutory inspections. 7 Marking, packaging, transportation, storage
7.1 The following should be marked on the inside and outside of the packaging: product name, manufacturer name, trademark, batch number, purity, quality, and export number. If the ordering unit has strict requirements, they can make another agreement with the production unit; 7.? This product should be placed in a dry, ventilated, cool warehouse to avoid freezing pollution, and should be transported in a manner that prevents direct sunlight. It must also comply with the relevant regulations 7.3: meet the specified return conditions, complete the number of packages, and never unpack. The shelf life of this product is 2 years.
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