GB 22558-2008 English PDFUS$319.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. GB 22558-2008: Food additive -- Erythorbic acid Status: Obsolete
Basic dataStandard ID: GB 22558-2008 (GB22558-2008)Description (Translated English): Food additive -- Erythorbic acid Sector / Industry: National Standard Classification of Chinese Standard: X42 Classification of International Standard: 67.220.20 Word Count Estimation: 8,899 Date of Issue: 2008-12-03 Date of Implementation: 2009-06-01 Quoted Standard: GB/T 601; GB/T 603; GB/T 617; GB/T 5009.75; GB/T 5009.76; GB/T 6682; JJF 1070; General Administration of Quality Supervision, Inspection and Quarantine of Decree No. 75 of prepackaged goods metrological supervision and management approach Regulation (derived from): Announcement of Newly Approved National Standards No. 19 of 2008 (No. 132 overall) Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China Summary: This Chinese standard specifies the food additive D- iso- ascorbic acid requirements, test methods, inspection rules, marking, packaging, transportation, storage and shelf life. This standard applies to raw materials such as glucose, by fermentation to give 2 Keto -D- gluconic acid, and then by esterification, acidification, purification steps such as the production of food additives D- iso- ascorbic acid. GB 22558-2008: Food additive -- Erythorbic acid---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.Food additive.Erythorbic acid ICS 67.220.20 X42 National Standards of People's Republic of China Food Additives D- erythorbate Published 2008-12-03 2009-06-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China issued ForewordChapter 4 of this standard is mandatory, the rest are recommended. This standard technical indicators modified using the United States, "Food Chemical Codex" (FCC, fifth edition) D- erythorbate technical regulations Grid, while referring to the Codex Alimentarius Commission (CAC) recommended by the Joint FAO/WHO Expert Committee on Food Additives (JECFA.2003 Requirement) technical specifications and Japan officially sanctioned book (Seventh Edition) to D- erythorbic acid. The standard proposed by the Jiangxi Provincial Quality and Technical Supervision. This standard by the National Standardization Technical Committee on Food Additives. This standard was drafted. Dexing City Barbican different VC sodium Co., Ltd., Zhengzhou top Yang Biological Engineering Co., Shangrao City, quality and technical supervision Governor Office. The main drafters. Zhou Qiang, Jiang Hao, Qin Rujie, Lin Yu Si, Wang Jingchen, Yu Wei, Yu Bin. Food Additives D- erythorbate Range 1 This standard specifies requirements, test methods, inspection rules D- erythorbic acid food additive, signs, packaging, transportation, storage, and security Shelf life. This standard applies to glucose and the like as raw materials by fermentation -D- 2-keto-gluconic acid, regenerated by esterification, acidification, purification step, etc. Production of food additives D- erythorbate.2 Normative referencesTerms of the following documents become provisions of this standard by reference in this standard. For dated reference documents, all later Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to agreements based on this standard Whether the latest versions of these documents. For undated references, the latest version applies to this standard. Preparation GB/T 601 standard titration solution Chemicals GB/T 603 Test Methods Chemicals Preparations of articles (GB/T 603-2002, ISO 6353-1 with. 1982, NEQ) GB/T 617 chemical reagent melting range of common measurement method (GB/T 617-2006, ISO 6353-1. 1982, NEQ) Determination of lead in food additives 5009.75 GB/T Determination of arsenic in food additives 5009.76 GB/T GB/T 6682 for analytical laboratory use specifications and test methods (GB/T 6682-2008, ISO 3696. 1987, MOD) JJF1070 net content of prepackaged goods inspection rules The State Administration of Quality Supervision, Inspection and Quarantine Decree No. 75 of prepackaged goods metrological supervision and management measures 3 structural formula, molecular formula and molecular weight 3.1 Structure. 3.2 Molecular formula. C6H8O6. 3.3 Molecular Weight. 176.13.4 Requirements4.1 Properties Crystalline particles or powder of white or yellow. 4.2 Physical and Chemical Indicators Shall comply with the requirements in Table 1. Table 1 Physical and Chemical Indicators Item Index D- iso-ascorbic acid content (dry basis)/99.0 to 100.5% Specific rotation [α] 25D -16.5 ° ~ -18.0 ° Loss on drying mass fraction /% ≤ 0.4 Residue on ignition mass fraction /% ≤ 0.3 Arsenic (As)/(mg/kg) ≤ 2.0 Lead (Pb)/(mg/kg) ≤ 2.0 4.3 The net amount of content and loading tolerance Net content labeling packaging labels prevail, installed by the amount of tolerance "prepackaged goods metrological supervision and management approach".5 Test methodsUnless otherwise stated, use only confirmed in the analysis of analytical grade reagents and GB/T 6682 stipulated water. 5.1 Identification Test 5.1.1 of 2mL aqueous sample (1.50), a few drops of sodium nitroprusside indicator solution (by GB/T 601 specified), plus 1mL Aqueous sodium hydroxide solution (0.1mol/L), the resulting solution immediately blue instantly. 5.1.2 Weigh about 15mg sample was dissolved in 15mL trichloroacetic acid solution (1.20) was added approximately 200mg of activated carbon, mixed with strong shaking Compound 1min, through a small filter with a fluted filter, if necessary, then filtering it, to obtain a clear filtrate, take 5mL supernatant, add 1 Pyrrole dropwise, the mixture shaken until dissolved pyrrole, followed by heating on a water bath at 50 ℃, generating blue. 5.1.3 Method according to GB/T 617 a predetermined measurement sample melting range of 164 ℃ ~ 172 ℃ (decomposition). 5.2 Properties The sample was placed in a clean, dry white porcelain plate was visually in natural light. 5.3 Physical and Chemical Indicators 5.3.1 D- iso-ascorbic acid content 5.3.1.1 Reagents and materials a) iodine standard solution. Ba (12i2 ) = 0.1mol/L, formulated in a predetermined GB/T 601 a. b) sulfuric acid solution. 100g/L. c) starch indicator. 10g/L, prepared by the method of GB/T 603 specified. 5.3.1.2 Analysis of step Accurately weigh approximately 0.4 g of (accurate to 0.0001g) sample after drying, was placed 250mL iodometric flask, 100mL freshly distilled Cold distilled water and a solution of 25mL sulfuric acid. After the sample is dissolved immediately titrated with standard iodine solution. Near the end of the titration, adding 1mL lake Powder indicator and continue titration until the solution was blue and does not fade in the 30s, a few ml of standard solution of iodine consumption records. 5.3.1.3 calculation results X1 D- erythorbic acid content mass fraction (%), calculated according to formula (1). 100 (1) Where. --- Ba iodine standard solution concentration, expressed in moles per liter (mol/L); Qiao --- Volume iodine standard solution consumed in milliliters (mL); 0.1mol/L standard solution of iodine equivalent to 8.806mg 8.806 --- 1mL of erythorbic acid; 5.3.1.4 allow poor The arithmetic average of the measurement results parallel the measurement results, the measurement result of the parallel absolute difference is not greater than 0.2%. 5.3.2 Specific rotation 5.3.2.1 Instruments Polarimeter (precision ± 0.01 °). 5.3.2.2 Analysis of step 5g samples were accurately weighed, to the nearest 0.0001g, a 50mL volumetric flask, add distilled water and dilute to volume, in Its specific rotation measured with a polarimeter conditions at 25 ℃ ± 1 ℃. 5.3.2.3 calculation results Specific rotation [α] 25D according to formula (2). [Α] 25D = α L Ba (2) Where. [Α] 25D --- specific rotation of the product; α --- 25 ℃ rotation when observed; --- Ba concentration in the sample solution in grams per milliliter (g/mL); L --- optical tube length in decimeter (dm). 5.3.2.4 allow poor The arithmetic average of the measurement results parallel the measurement results, the measurement results of the parallel absolute difference is not more than 0.3 °. 5.3.3 Loss on drying 5.3.3.1 apparatus, equipment a) typically laboratory instruments; b) a vacuum oven; c) weighing bottle. diameter 50mm, height 30mm. 5.3.3.2 Analysis of step Weigh about 5g samples, accurate to 0.0001g, and dried to constant weight has been placed in the weighing bottle, at 60 ℃ ± 1 ℃, dried at 0.01MPa Drying to constant weight, and then cooled to room temperature in a desiccator, and weighed. 5.3.3.3 calculation results X2 mass fraction Loss on drying (%), calculated according to formula (3). (3) Where. 5.3.3.4 allow poor The arithmetic average of the measurement results parallel the measurement results, the measurement results of the parallel absolute difference is not more than 0.05%. 5.3.4 Residue on ignition 5.3.4.1 apparatus, equipment Porcelain crucibles, furnaces. 5.3.4.2 Analysis of step Weigh about 1g sample, accurate to 0.0001g, ignition has been placed in a crucible to constant weight at 600 ℃ ~ 700 ℃, slowly on a hotplate Slow heating to the sample completely carbonized. The sample was cooled carbonization wetted with 0.5mL of sulfuric acid residue, sulfuric acid and heating was continued to the vapor Yat do, And to the burning at 600 ℃ ~ 700 ℃ constant weight. 5.3.4.3 calculation results Residue on ignition X3 mass fraction (%), calculated according to formula (4). (4) Where. 5.3.4.4 allow poor The arithmetic average of the measurement results parallel the measurement results, the measurement results of the parallel absolute difference is not more than 0.05%. 5.3.5 arsenic Testing according to GB/T 5009.76 predetermined. 5.3.6 Lead Testing according to GB/T 5009.75 predetermined. 5.4 The net amount of content and loading tolerance Detection accordance with the provisions of JJF1070.6 Inspection Rules6.1 Batch Each shift or shift product after the mixed batch. 6.2 Sampling and sample volume In different parts of the same batch of products stacked random samples, each batch of 3% of the number of packages extraction, samples taken each package not less To 100g, the extracted sample is mixed quickly and uniformly dispensed into two clean, dry vials, and indicate the manufacturer, product name He said the batch number, quantity and date of sampling, a test used, a seal retained for future reference. 6.3 factory inspection 6.3.1 factory inspection items include ascorbic acid content D- isobutyl, specific rotation, loss on drying, residue on ignition, net weight, the amount of loading tolerance. 6.3.2 Each batch of products shall be subject to inspection and issued before the factory product certification. 6.4 Type inspection All items specified in Chapter 4 are type test items. Type test carried out every six months, when one of the following circumstances Type inspection should be carried out. --- large change material, the process occurs; --- discontinued after one month to resume production; When --- factory inspection results and the last type inspection are quite different. 6.5 determine the rules and review When tested on all the technical requirements, test results if an index does not meet the requirements of this standard, the same batch of products should be re Doubling the sample be retested. Review the results as long as one does not meet this standard, the entire batch of products as unqualified. 7 signs, packaging, transportation, storage and shelf life 7.1 marks The following shall be marked on the packaging of the product. product name, manufacturer name and address, license number, health permit number, specification, net weight, Production date, shelf life, batch number or code, product standards, scope, use and methods of use, and clearly marked "food additives Agent "words, it should also be attached to the product manual. 7.2 Packaging Product packaging materials should be consistent with national health requirements and relevant standards. 7.3 Transport Products should not be mixed with toxic and harmful contaminants and during transport, and should avoid the sun and rain. 7.4 Storage Products should be stored in ventilated, clean, dry and cool, dry and dark room and save, not toxic, hazardous and corrosive and other items Stored together. 7.5 Shelf Life Subject to the above storage conditions, original packaging intact, from the date of production, product shelf life of less than 12 months. More than the shelf Of re-inspection, testing results consistent with the standard product can still be used. ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB 22558-2008_English be delivered?Answer: Upon your order, we will start to translate GB 22558-2008_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.Question 2: Can I share the purchased PDF of GB 22558-2008_English with my colleagues?Answer: Yes. The purchased PDF of GB 22558-2008_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.Question 3: Does the price include tax/VAT?Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countriesQuestion 4: Do you accept my currency other than USD?Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay. |
