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GB 15571-2010 English PDF

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GB 15571-2010: National food safety standards -- Food additives -- Calcium gluconate
Status: Valid

GB 15571: Evolution and historical versions

Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
GB 15571-2010English229 Add to Cart 3 days [Need to translate] National food safety standards -- Food additives -- Calcium gluconate Valid GB 15571-2010
GB 15571-1995English279 Add to Cart 3 days [Need to translate] Food additive--Calcium gluconate Obsolete GB 15571-1995

PDF similar to GB 15571-2010


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Basic data

Standard ID GB 15571-2010 (GB15571-2010)
Description (Translated English) National food safety standards -- Food additives -- Calcium gluconate
Sector / Industry National Standard
Classification of Chinese Standard X42
Classification of International Standard 67.220.20
Word Count Estimation 10,150
Date of Issue 2010-12-21
Date of Implementation 2011-02-21
Older Standard (superseded by this standard) GB 15571-1995
Regulation (derived from) Ministry of Health Bulletin No. 19 of 2010
Issuing agency(ies) Ministry of Health of the People's Republic of China
Summary This Chinese standard applies to starch as the starting material, obtained by the fermentation of glucose and legal source of calcium food additive prepared by the reaction of calcium gluconate.

GB 15571-2010: National food safety standards -- Food additives -- Calcium gluconate

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National food safety standards - food additives - calcium gluconate National Standards of People's Republic of China National Food Safety Standard Food additives calcium gluconate Issued on. 2010-12-21 2011-02-21 implementation People's Republic of China Ministry of Health issued

Foreword

This standard replaces GB 15571-1995 "food additive calcium gluconate." This standard compared with GB 15571-1995, the main changes are as follows. - Cancel the differential response of ferric chloride; - Added identification of an infrared absorption spectrum; - Cancellation of the second law of arsenic test method; - Cancel the first normal heavy metal content test method. - Modify the loss on drying test methods; - Modify the test method for reducing substances; - Revision of the test method for determination of chloride; - Revision of the test method for the determination of sulphate. The Standard Annexes A and B are normative appendix. This standard replaces the standards previously issued as follows. --GB 15571-1995. National Food Safety Standard Food additives calcium gluconate

1 Scope

This standard applies to starch as a starting material, obtained by fermentation of glucose by the reaction of the calcium source of food additives Calcium gluconate.

2 Normative references

The standard file referenced in the application of this standard is essential. For dated references, only the note Version Date apply to this standard. For undated references, the latest edition (including all amendments) fitness For this standard. 3 chemical name, molecular formula, molecular mass and structural formula 3.1 Chemical Name D- gluconate monohydrate Formula 3.2 C12H22CaO14 · H2O 3.3 formula HOH2C C OH CCC COO OH OH OH Ca 2 H2O 3.4 relative molecular mass 448.39 (according to 2007 international relative atomic mass) 4. Technical Requirements 4.1 Sensory requirements. comply with Table 1. Table 1 Sensory requirements Project requires test methods Color White take appropriate sample is placed in a clean, dry white porcelain dish, natural Light, observe its color and texture. Odour odorless Organizational status crystalline powder or granular powder 4.2 Physical indicators. to comply with Table 2. Table 2. Physical and chemical indicators Item Index Test Method Calcium gluconate (to C12H22CaO14 · H2O meter, dry basis), w /% 99.0 ~ 102.0 Appendix A A.4 pH (50.0g/L solution) 6.0 ~ 8.0 GB/T 9724 Chloride (Cl dollars), w /% ≤ 0.05 Appendix A A.5 Sulfate (SO4 dollars), w /% ≤ 0.05 A.6 in Appendix A Reducing sugars (C6H12O6 to count), w /% ≤ 1.0 Appendix A A.7 Loss on drying, w /% ≤ 2.0 Appendix A A.8 Heavy metals (Pb)/(mg/kg) ≤ 10 Appendix A A.9 Arsenic (As)/(mg/kg) ≤ 2 Appendix A A.10

Appendix A

(Normative) Testing method A.1 Safety Tips Reagents The standard test methods used for toxic or corrosive, according to the relevant provisions of the operation, should be used with caution cautious. If splashed on the skin should immediately wash with water, severe cases should be treated immediately. When using a volatile acid, to a fume hood Carried out. A.2 General Provisions Unless otherwise indicated in the analysis using only recognized as analytical reagents and GB/T 6682-2008 stipulated three water. Test methods used in the standard titration solution, impurities measured by standard solution, preparations and products, the other did not indicate to When evaluated, according to GB/T 601, GB/T 602, GB /603 provisions of the preparation T. A.3 Identification A.3.1 Reagents and materials A.3.1.1 glacial acetic acid. A.3.1.2 phenylhydrazine. When you use distillation. A.3.2 Identification Test A.3.2.1 Identification of calcium A.3.2.1.1 principle of the method Calcium and ammonium oxalate test solution reaction, a white precipitate, the precipitate was not dissolved in acetic acid, but soluble in dilute hydrochloric acid. A.3.2.1.2 analysis step Take about 1.0 g laboratory samples, accurate to 0.01 g, add 40 mL of water to dissolve, if necessary, heated to dissolve, take this solution Hydraulic press, "People's Republic of China Pharmacopoeia" 2005 edition two Appendix Ⅲ general identification test calcium item (2), should be significantly calcium Salts differential response. A.3.2.2 Identification of glucose A.3.2.2.1 principle of the method Sample in acetic acid medium, and phenylhydrazine were hot, a yellow crystalline glucose acid phenylhydrazine. A.3.2.2.2 analysis step Take about 0.5 g laboratory samples, accurate to 0.01 g, set 10 mL test tube, add 5 mL of water and dissolved (if necessary, add Hot), add 0.7 mL of glacial acetic acid and 1 mL of phenylhydrazine, in a water bath heated 30min, to room temperature, friction test tube with a glass rod Wall, yellow crystals are precipitated. A.3.2.3 Identification of the infrared absorption spectrum Determination of potassium bromide tablet method, infrared absorption spectrum of laboratory samples should map "Drug IR control Set "465 Figure) consistent with the control map in Appendix B. A.4 Determination of calcium gluconate A.4.1 Method summary Purpurin as calcium indicator, disodium edetate standard titration droplet given sample solution, based on ethylene diamine tetra The amount of standard disodium titrant, calculate the content to C12H22CaO14 · H2O meter calcium gluconate. A.4.2 Reagents and materials A.4.2.1 purpurin calcium indicator. A.4.2.2 sodium hydroxide solution. 40g/L. A.4.2.3 disodium edetate standard titration solution. c (EDTA) = 0.05mol/L. A.4.3 Analysis step 0.5g of laboratory samples, accurate to 0.000 1g, add 100 mL of water to dissolve (heating if necessary), put to Room temperature, and 15mL of sodium hydroxide solution, 0.1g purpurin calcium indicator, disodium edetate standard solution to titrate Solution from purple into a pure blue, and titration with blank test correction, each 1mL of disodium edetate drops Was given the equivalent 22.42mg C12H22CaO14 · H2O. A.4.4 Calculation Results Calcium gluconate (to C12H22CaO14 · H2O meter) mass fraction w1, expressed in%, according to formula (A.1) Calculated. () 0113 () 100% VV c Mw mw - × × = ×× - × (A.1) Where. V - laboratory sample consumption disodium edetate standard titrant volume values in milliliters (mL); 0V - blank test value disodium edetate standard titrant volume consumed in milliliters (mL); c - accurate disodium edetate standard titration solution concentration value in units of moles per liter (mol/L); 1m - Numerical laboratory sample mass, in grams (g); 3w - Press A.8 measured for the sample drying loss mass fraction, expressed in%; Numerical M --C12H22CaO14 · H2O molar mass in grams per mole (g/mol) (M = 448.39). Take two parallel determination results of the arithmetic average of the measurement results, the results of two parallel determination of the absolute difference is not more than 0.2%. A.5 Determination of chloride A.5.1 Reagents and materials A.5.1.1 nitric acid solution. 25 → 100. A.5.1.2 silver nitrate solution. 17g/L. A.5.1.3 sodium chloride standard solution. 0.01mg per ml of Cl. A.5.2 Analysis step Weigh 1.0g ± 0.01g laboratory sample set 100mL flask, add water to dissolve 80mL, diluted with water to The mark, shake, is the laboratory sample solution. Pipette 10.0 mL laboratory sample solution 5mL ± 0.05mL chloride Sodium standard solution, according to GB/T 9729 Determination. A.6 Determination of sulfates A.6.1 Reagents and materials A.6.1.1 hydrochloric acid. 20 → 100. A.6.1.2 Potassium ethanol. 0.2g/L. A.6.1.3 barium chloride solution. 250g/L. A.6.1.4 sulfate standard solution. 0.1mg per ml of SO4. A.6.2 Analysis step Weigh 0.5g ± 0.01g laboratory sample, add water, heat gently to dissolve into about 20mL, with this solution, and the other to take 2.5mL ± 0.05mL sulfate standard solution according to GB/T 9728 Determination. A.7 Determination of reducing substances A.7.1 principle of the method Sugar will restore divalent copper ions into cuprous oxide, cupric ions remaining under acidic conditions to react with iodide Health A quantitative iodine titration with sodium thiosulfate standard solution of iodine generated to calculate the reducing sugar content in the sample. A.7.2 Reagents and materials A.7.2.1 alkaline copper citrate solution preparation. Solution A. Weigh 173 g of sodium citrate (sodium citrate) and 100g of anhydrous sodium carbonate, warm water to dissolve into a 700mL (if Turbid solution was clarified by filtration). Solution B. Weigh 17.3 g of copper sulfate crystallization, add water to dissolve into a 100mL. Immediately prior to use 100 mL of solution B, shaking constantly, slowly added 700mL solution A, after cooling, add water to 1000mL. A.7.2.2 iodine standard solution. c (1/2I2) = 0.05 mol/L. A.7.2.3 sodium thiosulfate standard titration solution. 0.1mol/L. A.7.2.4 starch indicator solution. 10g/L. A.7.2.5 acetic acid solution. 127. A.7.2.6 hydrochloric acid solution. 3mol/L. A.7.3 Analysis step Weigh about 1.0g laboratory samples, accurate to 0.001g, set 250mL iodine bottle, add 20mL of water (if necessary heated) Dissolve, cooled to room temperature and accurately added 25.0 mL alkaline copper citrate solution, bottle with a small surface covered dish, accurate micro Boil for 5 min, rapidly cooled to room temperature, add 25.0 mL of acetic acid solution, shake, precise standard iodine solution was added 10.0 mL, Micronesia Plug, shake for 10 min, a solution of hydrochloric acid was added 10.0mL, plus starch indicator solution 3.0mL, immediately with sodium thiosulfate Standard solution titration until the solution was light blue, and titration with blank test correction. Per milliliter of standard solution of sodium thiosulfate (0.1mol/L) is equivalent to 2.7mg glucose. A.7.4 Calculation Results Reducing sugar (in terms C6H12O6) mass fraction w 2, the value is expressed in% according to formula (A.2) Calculation () 100% VV c Mw - × × = ×× (A.2) Where. 0V - Numerical sodium thiosulfate standard titration solution consumed in the blank test volume in milliliters (mL); 1V - Numerical sodium thiosulfate standard titration solution consumed in titration test solution volume in milliliters (mL); c - numerical solution of sodium thiosulfate standard titration of the actual concentration of units of moles per liter (mol/L); 2m - Numerical laboratory sample mass, in grams (g); M - sugar value (3/20C6H12O6) molar mass in grams per mole (g/mol) (M = 27). A.8 Determination of loss on drying A.8.1 Instruments and Equipment Ovens. A.8.2 Analysis step Weigh about 1.0g laboratory samples fine, accurate to 0.000 1g, has been placed in the 105 ± 2 ℃ ℃ dried to constant weight, said Flask, accurately weighed, and then set within 105 ± 2 ℃ ℃ constant temperature oven dried to constant weight, from the quality and reduce the loss of sample weight calculation Loss on drying of the sample. A.8.3 Calculation Results Calcium gluconate drying loss mass fraction w 3, the value is expressed in% according to formula (A.3) Calculation 100% m mw mm - = × - (A.3) Where. 0m - value quality weighing bottles in grams (g); 3m - Numerical weighing bottles and dried before laboratory sample mass, in grams (g); 4m - weighing bottles and dried numerical laboratory sample mass, in grams (g). A.9 Determination of Heavy Metals A.9.1 Reagents and materials A.9.1.1 nitrate. A.9.1.2 glycerol. A.9.1.3 ammonium acetate. A.9.1.4 lead nitrate. A.9.1.5 thioacetamide. A.9.1.6 hydrochloric acid solution. c (HCl) = 2 mol/L. A.9.1.7 ammonia solution. c (NH3 · H2O) = 5 mol/L. A.9.1.8 sodium hydroxide solution. c (NaOH) = 1 mol/L. A.9.1.9 hydrochloric acid solution. c (HCl) = 7 mol/L. A.9.1.10 acetate buffer (pH3.5). Weigh 25 g of ammonium acetate, accurate to 0.01 g, after adding 25 mL of water to dissolve, Added 7 mol/L hydrochloric acid solution, 38 mL, 2 mol L hydrochloric acid solution with/or a 5 mol/L aqueous ammonia solution, the pH adjusted to accurately 3.5 of 5 (pH Meter), diluted to 100 mL. A.9.1.11 thioacetamide test solution. Weigh 4 g thioacetamide, to the nearest 0.01 g, add water to dissolve into a 100 mL, Home refrigerator. Immediately prior to taking a mixture of 5.0 mL (from the 15 mL 1 mol/L sodium hydroxide solution, 5.0 mL of water and 20 mL glycerol), plus the aforementioned 1.0 mL of thioacetamide solution was heated on a water bath 20s, cooling, use immediately. A.9.1.12 lead standard solution. Weigh 0.160 g of lead nitrate, accurate to 0.000 2g, placed in 1000 mL volumetric flask, add After 5 mL and 50 mL of nitric acid dissolved in water, dilute to the mark, shake, as the stock solution. Before use, pipette 10 mL ± 0. 02mL stock solution into 100 mL volumetric flask, diluted with water to the mark, shake, that was (equivalent per 1mL 10 μg The Pb). Preparation and storage of glassware used shall not contain lead. A.9.2 Analysis step Press the "People's Republic of China Pharmacopoeia" 2005 edition Appendix Ⅷ H method first heavy metal inspection method. specific Here's how. Take 25 mL Nessler colorimetric tube two, A tube was added 1 mL ± 0.01mL (lead 10.0μg) Lead (Pb) standard solution After the solution with 2 mL acetate buffer, diluted with water to 25 mL, 1 g Weigh other laboratory samples, accurate to 0.01 g, set Nessler colorimetric tube in tube B, add 20 mL of water, heat gently to dissolve, let cool, add 2 mL acetate buffer (pH3.5), Diluted with water to 25 mL, if the solution is colored, caramel may be dropping a small amount of a dilute solution or other non-interference in the armor tube in Color solution, make it consistent with the B pipe; and then were added thioacetamide test solution in B two each 2 mL, shake, place 2min, With home on white paper, the perspective from down on the tube B and A show of color in the tube, not deeper. A.10 Determination of arsenic (arsenic plaque assay) Weigh 1g ± 0.01g laboratory samples, hydrochloric acid reagent 5mL, add water to 30 mL dissolved, according to GB/T 5009.76 Determination of Arsenic plaque assay, 2mL ± 0.02mL amount of arsenic standard solution (arsenic 2.0 μg), prepared arsenic limits.

Appendix B

(Normative) Calcium gluconate infrared absorption spectrum Note. Quoted from "Drug IR set," Volume I (1995), People's Republic of China Ministry of Health Pharmacopoeia Commission Figure B.1 gluconate infrared absorption spectrum

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