GB 1903.7-2015 English PDFUS$209.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. GB 1903.7-2015: National food safety standard -- Food Nutrition Enhancer -- Manganese gluconate Status: Valid
Basic dataStandard ID: GB 1903.7-2015 (GB1903.7-2015)Description (Translated English): National food safety standard -- Food Nutrition Enhancer -- Manganese gluconate Sector / Industry: National Standard Classification of Chinese Standard: X40 Classification of International Standard: 67.220.20 Word Count Estimation: 10,171 Date of Issue: 2015-11-13 Date of Implementation: 2016-05-13 Regulation (derived from): National Health and Family Planning Commission Announcement No Issuing agency(ies): National Health and Family Planning Commission of the People's Republic of China Summary: This standard applies to gluconic acid or gluconolactone, manganese sulfate as the main raw material, processed food nutrition fortifier gluconate. GB 1903.7-2015: National food safety standard -- Food Nutrition Enhancer -- Manganese gluconate---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.(National food safety standards of food nutrition fortifier manganese gluconate) National Standards of People's Republic of China National Food Safety Standard Fortified Food manganese gluconate Issued on. 2015-11-13 2016-05-13 implementation People's Republic of China National Health and Family Planning Commission released National Food Safety Standard Fortified Food manganese gluconate 1 ScopeThis standard applies to gluconic acid or gluconolactone, manganese sulfate as the main raw material, processed prepared food nutrition fortifier grapes Sugar manganese products. 2 molecular formula, relative molecular mass and structural formula Formula 2.1 C12H22MnO14 (anhydrous compound), C12H22MnO14 · 2H2O (dihydrate) 2.2 formula (anhydrate) 2.3 relative molecular mass Anhydrous compound. 445.24 (according to 2011 international relative atomic mass) Dihydrate. 481.27 (according to 2011 international relative atomic mass)3 Technical requirements3.1 Sensory requirements Sensory requirements shall comply with the requirements of Table 1. Table 1 Sensory requirements Project requires test methods Color Organization Status Light Pink Granular or crystalline powder Take the right amount of sample is placed in a clean, dry white porcelain dish, self Under natural light, observe its color and texture 3.2 Physical and Chemical Indicators Physical and chemical indicators should be consistent with the provisions of Table 2. Table 2. Physical and chemical indicators Item Index Test Method Manganese gluconate (C12H22MnO14) content (dry basis Meter), w /% 98.0 102.0 Appendix A A.4 Water, w /% Anhydrous compound Dihydrate 3.0 to 9.0 6.0-9.0 Appendix A A.5 Reducing substances, w /% ≤ 1.0 A.6 in Appendix A Chloride (Cl dollars), w /% ≤ 0.05 Appendix A A.7 Sulfate (SO4 dollars), w /% ≤ 0.2 Appendix A A.8 Arsenic (As)/(mg/kg) ≤ 3.0 A.9 in Appendix A Lead (Pb)/(mg/kg) ≤ 2.0 Appendix A A.10Appendix ATesting method A.1 Safety Tips Reagents The standard test methods used for toxic or corrosive in accordance with the relevant provisions need to be careful when using the operation. If the Splashed on the skin should immediately wash with water, severe cases should be treated immediately. When using a volatile acid, to be carried out in a fume hood. A.2 General Provisions Unless otherwise indicated in the analysis using only confirm three water as analytical reagent and GB/T 6682 stipulated. Test Methods Standard titration solution, impurities measured by standard solution, preparations and products, did not indicate when the other requirements, according to GB/T 601, GB/T 602, the provisions of the preparation of GB/T 603's. The solution in a solvent which does not indicate by when formulated, refers to an aqueous solution. A.3 Identification Test A.3.1 Reagents and materials A.3.1.1 glacial acetic acid. A.3.1.2 ammonia solution. Take a concentration of 28% aqueous ammonia 400mL, diluted with water to 1000mL. The test liquid ammonia content of 9.5% 10.5%. A.3.1.3 hydrogen sulfide gas. ferrous sulfide and sulfuric acid as raw material, Kipp gas generator preparation. A.3.1.4 magnesium sulfate solution. dissolve 12g of magnesium sulfate (MgSO4 · 7H2O) in an appropriate amount of water, diluted with water to 100mL. A.3.1.5 calcium chloride solution. a saturated aqueous solution of calcium chloride. A.3.1.6 10% ammonium sulfide solution. saturated ammonia solution with hydrogen sulfide gas (A.3.1.2), then add 2/3 of its volume of ammonia solution. Residue on ignition shall not exceed the amount of the solution is 0.05%, the case of magnesium sulfate solution (A.3.1.4) or calcium chloride solution (A.3.1.5) may not occur muddy Cloud, as is apparent solution sulfide precipitation, already can not be used. This solution should be stored in a brown vial, placed in cold and dark. Sample solution A.3.1.7. formulated at a concentration of 5% solution, if necessary, dissolved by heating at 60 ℃. A.3.1.8 phenylhydrazine. When you use distillation. A.3.1.9 Potassium bromide. pure spectrum. A.3.2 Identification of manganese ion (Mn2) of A.3.2.1 Method summary Manganese salt solution in case of ammonium sulfide solution which produce orange-red precipitate which soluble glacial acetic acid. A.3.2.2 analysis step Added 20mL sample solution (A.3.1.7) in a beaker, then add 0.5mL ammonium sulfide solution (A.3.1.6), 10min after standing View Police should produce orange-red precipitate. Of glacial acetic acid was added dropwise, the precipitate should be dissolved. A.3.3 Identification of gluconate A.3.3.1 Chemical Identification Act A.3.3.1.1 Method summary Samples in acetic acid medium, and phenylhydrazine were hot, a yellow crystalline glucose acid phenylhydrazine. A.3.3.1.2 analysis step Weigh 0.5g sample, add 10mL water, dissolved (heat gently to dissolve if necessary), of the solution 5mL in 10mL test tube, 0.7mL of glacial acetic acid and 1mL phenylhydrazine (A.3.1.8), water bath heating 30min, cooled to room temperature, the inner wall of the tube with a glass rod friction, should be deposited Yellow crystals. A.3.3.2 Infrared Spectroscopy Using potassium bromide tablet method, tested in accordance with the provisions of GB/T 6040, and the infrared spectrum of the sample should be consistent with the control spectrum. Correct According spectrum in Appendix B. A.4 Determination of manganese gluconate (C12H22MnO14) Content A.4.1 Method summary Chrome black T as indicator, with disodium edetate standard titration solution sample solution was titrated according to standard disodium edetate The amount of quasi-titration solution content was calculated to C12H22MnO14 meter manganese gluconate. A.4.2 Reagents and materials A.4.2.1 disodium ethylenediaminetetraacetate (EDTA disodium). c (Na2EDTA) = 0.05mol/L. A.4.2.2 ascorbic acid. A.4.2.3 ammonia - ammonium chloride buffer solution. Weigh 67.5g of ammonium chloride, dissolved in an appropriate amount of water, was added 570 mL of 28% aqueous ammonia, diluted with water to 1000mL. A.4.2.4 chrome black T solution. Take chrome black T200mg and hydroxylamine hydrochloride (NH2OH · HCl) 2g, was dissolved in methanol and diluted to 50mL, filter. Stored in a light-shielding container, the inner limit of two weeks use. A.4.3 Analysis step Accurately weighed sample of about 700mg in 250mL conical flask, add water 50mL dissolved (heating if necessary), ascorbic acid 1g, plus Into 10mL ammonia - ammonium chloride buffer solution and 5 drops of chrome black T solution, to 0.05mol/LEDTA disodium solution was titrated to dark blue. While doing Blank test. A.4.4 Calculation Results Sample mass fraction of manganese gluconate (w1) (dry basis), according to formula (A.1) Calculated. w1 = c × (V-V0) × 445.24 m × 1000 × (1-x) × 100% (A.1) Where. w1 --- sample manganese gluconate mass fraction,%; Concentration c --- EDTA disodium standard titration solution, expressed in moles per liter (mol/L); Volume V --- disodium EDTA titration reagent consumption solution in milliliters (mL); Volume V0 --- blank test consumption disodium EDTA standard titration solution, in milliliters (mL); 445.24 --- manganese gluconate molar mass in grams per mole (g/mol); M --- the quality of the sample, in grams (g); 1000 --- conversion factor; X --- moisture content of the sample,%. Take the arithmetic mean of the parallel determination results of the measurement results, the results of two parallel determination of the absolute difference is not more than 0.2%. A.5 Determination of Moisture A.5.1 Reagents A.5.1.1 Methanol. chromatographically pure. A.5.1.2 formamide. as reagent water in a concentration above 0.05% should be added in 500mL formamide 5A molecular sieve 50g, plug On cork place overnight, to learn to use the supernatant. A.5.1.3 extraction solvent. methanol (A.5.1.1) and formamide (A.5.1.2) by 1.1 (volume fraction) mixing, shake. A.5.2 Analysis step Weigh a sample of about 0.1g (accurate to 0.0001g), was added to the appropriate amount of extraction solvent (A.5.1.3), the first titration was stirred 30min. press GB/T 6283 in "direct coulometric titration" measurement. A.6 Determination of reducing substances A.6.1 Method summary And under boiling, a solution of a reducing sugar with alkaline copper citrate reaction equivalent amount of cuprous oxide (the Cu2O) precipitated, was added after cooling Hydrochloric acid and the solution is acidic, and Cu2O precipitate was dissolved. Then adding an excess of iodine solution accurately, oxidation with sodium thiosulfate solution titrated Excess iodine. Sodium thiosulfate standard solution titration blank test sample is subtracted to give a titration difference, thereby reducing the difference between the calculated Amount of substance. A.6.2 Reagents and materials A.6.2.1 alkaline copper citrate solution. Solution A. Weigh 173g sodium citrate (C6H5O7Na3 · 2H2O) and 100g of anhydrous sodium carbonate, dissolved in water and diluted to warm 700mL (if the solution is cloudy when clarified by filtration). Solution B. Weigh 17.3g of copper sulfate crystals were dissolved in water and diluted to 100mL. Before use take 100mL solution B, shaking constantly, slowly added 700mL solution A. Diluted to 1000mL with water after cooling. A.6.2.2 acetic acid solution. 1.10 (volume fraction). A.6.2.3 iodine standard solution. c ( 2I2 ) = 0.05mol/L. A.6.2.4 hydrochloric acid solution. 2.7mol/L. A.6.2.5 starch indicator. 0.5%, with the new Pro feature. A.6.2.6 sodium thiosulfate standard titration solution. c (Na2S2O3) = 0.1mol/L. A.6.3 Analysis step Weigh about 1.0g sample (accurate to 0.001g), placed in 250mL iodine bottle, add water to dissolve 10mL (if you can not be completely dissolved Properly heated, cooled to room temperature), was added 25.0mL alkaline copper citrate solution, bottle with a small dish surface is covered accurately boil after 5min, fast Super cool to room temperature, add 25.0mL of acetic acid solution, shake. Was added 10.0mL accurately iodine standard solution, hydrochloric acid solution was added 10.0mL, Mesa, shake. Plus 3.0mL starch indicator, and immediately titrated with sodium thiosulfate standard solution to the deep blue solution disappeared, and titration Results of blank test correction. Per milliliter of sodium thiosulfate standard titration solution (0.1mol/L) is equivalent to 2.7mg glucose. A.6.4 Calculation Results Reducing substances (in C6H12O6 meter) mass fraction w2, according to equation (A.2) Calculated. w2 = (V0-V1) × c × M m × 1000 × 100% (A.2) Where. w2 --- reducing substances in the sample (in C6H12O6 meter) mass fraction,%; Volume of sodium thiosulfate standard titration V0 --- titrate blank solution consumed solution in milliliters (mL); Volume V1 --- sodium thiosulfate standard titration titration solution consumed by the sample solution, in milliliters (mL); c --- the actual concentration of sodium thiosulfate standard titration solution, expressed in moles per liter (mol/L); --- The M molar mass of sugar units of grams per mole (g/mol), [M (3/20C6H12O6) = 27]; M --- the quality of the sample, in grams (g); 1000 --- conversion factor. A.7 chloride (Cl) Determination A.7.1 Reagents and materials A.7.1.1 nitric acid solution. Take 25mL of concentrated nitric acid, diluted with water to 100mL. A.7.1.2 silver nitrate solution. 17g/L. A.7.1.3 hydrochloric acid standard titration solution. 0.02mol/L. A.7.2 Analysis step Weigh 1.0g sample (accurate to 0.01g), dissolved in water and dilute to 50mL (if not completely dissolved can be properly heated), as Sample solution (concentration 20g/L). Take 0.7mL hydrochloric acid standard titration solution (A.7.1.3), water volume to 50mL, as the standard test Solution. They were taken in the sample solution and standard test solution 5.0mL, other ongoing press GB/T 9729 provisions in 25mL colorimetric tube operating. A.8 Sulfate (SO4 meter) measurement A.8.1 Reagents and materials A.8.1.1 hydrochloric acid solution. take 20mL of concentrated hydrochloric acid, diluted with water to 100mL. A.8.1.2 Potassium ethanol. 0.2g/L. A.8.1.3 barium chloride solution. 250g/L. A.8.1.4 sulfate standard solution. Accurately weigh 0.2000g (accurate to 0.0001g) was at 105 ℃ ~ 110 ℃ drying 2h of sulfuric acid Sodium (Na2SO4, superior grade pure), placed in 300mL beaker, it adds appropriate amount of distilled water, move in 1000mL volumetric flask, dilute with distilled water Diluted to scale shake. This solution per ml sodium 0.2mg. A.8.2 Analysis step Take the sample solution 5.0mLA.7.2 (20g/L) in 25mL colorimetric tube, while the other to take 1.0mL sulfate (SO42-) standard Standard solution (equivalent 0.2mgSO42-) operate according to GB/T 9728 regulations. A.9 Determination of Arsenic (As) of Weigh about 1.0g sample (accurate to 0.001g), according to GB 5009.76 "wet digestion" requirement for sample processing, will eventually digest Liquid transfer and water volume to 50mL volumetric flask, according to GB 5009.76 Determination "hydride atomic fluorescence spectrometry" other operations. A.10 Lead (Pb) Determination Weigh about 1.0g sample (accurate to 0.001g), according to GB 5009.12 "wet digestion" requirement for sample processing, will eventually digest And was transferred to 50mL volumetric flask with water, the other by GB 5009.12 "Graphite Furnace Atomic Absorption Spectrometry" measurement.Appendix BManganese gluconate standard infrared spectra Manganese gluconate standard infrared spectrum is shown in Figure B.1. Note. the spectrum from Bio-Rad, SadtlerDivision. Figure B.1 manganese gluconate standard infrared spectra ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB 1903.7-2015_English be delivered?Answer: Upon your order, we will start to translate GB 1903.7-2015_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. 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