GB 1886.43-2015 English PDF

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GB 1886.43-2015: National Food Safety Standard -- Food Additives -- Calcium ascorbate
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB 1886.43-2015	199	Add to Cart	3 days	National Food Safety Standard -- Food Additives -- Calcium ascorbate	Valid

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Basic data

Standard ID: GB 1886.43-2015 (GB1886.43-2015)
Description (Translated English): National Food Safety Standard -- Food Additives -- Calcium ascorbate
Sector / Industry: National Standard
Classification of Chinese Standard: X42
Classification of International Standard: 67.220.20
Word Count Estimation: 8,899
Date of Issue: 2015-09-22
Date of Implementation: 2016-03-22
Older Standard (superseded by this standard): GB 15809-1995
Regulation (derived from): PRC National Health and Family Planning Commission 2015 No.8
Issuing agency(ies): National Health and Family Planning Commission of the People's Republic of China

GB 1886.43-2015: National Food Safety Standard -- Food Additives -- Calcium ascorbate

---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 for food additives calcium ascorbate) National Standards of People's Republic of China National Food Safety Standard Food additive calcium ascorbate Issued on. 2015-09-22 2016-03-22 implementation People's Republic of China National Health and Family Planning Commission released

Foreword

This standard replaces GB 15809-1995 "food additive calcium ascorbate." This standard compared with GB 15809-1995, the main changes are as follows. --- Standard name was changed to "national food safety standards for food additives calcium ascorbate." National Food Safety Standard Food additive calcium ascorbate

1 Scope

This standard applies to ascorbic acid and calcium for raw materials of food additive calcium ascorbate. 2 chemical name, molecular formula, molecular mass and structural formula 2.1 Chemical Name Calcium ascorbate Formula 2.2 C12H14CaO12 · 2H2O 2.3 formula 2.4 relative molecular mass 426.34 (according to 2007 international relative atomic mass)

3 Technical requirements

3.1 Sensory requirements Sensory requirements shall comply with the requirements of Table 1. Table 1 Sensory requirements Project requires test methods White or light yellow color Odour odorless Status crystalline powder Take the right amount of sample is placed in a clean, dry white porcelain dish, self Observe the color and state of natural light, smell its flavor 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 Calcium ascorbate content (C12H14CaO12 · 2H2O Meter), w /% ≥ 98.0 Appendix A A.3 20D 95 ° ~ 97 ° Appendix Specific rotation [α] A in A.4 Fluoride, w /% ≤ 0.001 A.5 in Appendix A pH (10% aqueous solution) 6.8 ~ 7.4 A.6 in Appendix A Arsenic (As)/(mg/kg) ≤ 3.0 GB 5009.76 Heavy metals (Pb)/(mg/kg) ≤ 10.0 Appendix A A.7 Oxalate by test A.8 in Appendix A

Appendix A

Testing method A.1 General Provisions This standard reagents and water in the absence of other specified requirements, refer to the three water analytical reagent and GB/T 6682 regulations. Reagents Used in the standard solution, standard solution for measuring impurities, formulations and products, did not indicate when the other requirements according to GB/T 601, GB/T 602, GB/T 603 provisions of the preparation. Solution was used in the tests did not indicate what is formulated with solvent, it refers to an aqueous solution. A.2 Identification Test A.2.1 Reagents and materials A.2.1.1 methyl red test solution. take 0.1g methyl red plus 0.05mol/L sodium hydroxide solution 7.4mL to dissolve, add water, diluted to 200mL That is, too. Color range of pH4.2 ~ pH6.3 (test solution from red to yellow). A.2.1.2 ammonia solution. take ammonia 400mL, diluted with water to 1000mL. A.2.1.3 hydrochloric acid solution. take hydrochloric 234mL, diluted with water to 1000mL. A.2.1.4 ammonium oxalate test solution. oxalic acid from ammonia 3.5g, add water to dissolve into a 100mL. A.2.1.5 dichloro indophenol sodium test solution. take 2,6-dichloro-indophenol sodium 0.1g, add water, 100mL dissolve, and filtered. A.2.2 Identification method A.2.2.1 Take 1g sample was dissolved in 10mL of water, add methyl red indicator solution 2 drops of hydrochloric acid and then dropping to just acidic; plus grass acid solution, namely A white precipitate; separating the precipitate insoluble in acid, but soluble in hydrochloric acid. A.2.2.2 Take 1g sample was dissolved in 10mL water, adding sodium dichloro indophenol two drops of test solution, sodium dichloro-indigo phenol test solution fade. A.3 Determination of calcium ascorbate content (C12H14CaO12 · 2H2O basis) A.3.1 principle of the method Ascorbic acid in the sample can be quantitatively oxidized to iodine dehydrogenase ascorbic acid, based on the color change of the sample solution determine the titration end point. A.3.2 Reagents and materials Iodine standard titration solution. c 12I2 ÷ = 0.1mol/L. A.3.3 Analysis step Weigh a sample of about 0.3g, set 250mL Erlenmeyer flask, add water to dissolve 50mL, titration with iodine standard solution immediately, to the solution was light Yellow, does not fade in the 30s, is the titration end point. A.3.4 Calculation Results Calcium ascorbate content (C12H14CaO12 · 2H2O meter) mass fraction w1, according to equation (A.1) Calculated. w1 = V × c × m × 100% (A.1) Where. Volume V --- sample consume iodine standard solution titration, in milliliters (mL); C --- iodine concentration standard titration solution, expressed in moles per liter (mol/L); Molar mass M --- calcium ascorbate, in units of grams per mole (g/mol), M 4C12H14CaO12 · 2H2O ÷ = 106.6é êê úú; 1000 --- conversion factor; M --- the quality of the sample, in grams (g). This method two parallel determination results relative deviation of not more than 0.3%. A.4 Determination of specific rotation [α] 20D of A.4.1 Instruments and Equipment Polarimeter. A.4.2 Analysis step 1g sample taken with water to 25mL, according to GB/T 613 Determination. A.5 Determination of fluoride A.5.1 Reagents and materials A.5.1.1 sodium fluoride. A.5.1.2 fluoro standard solution. According to GB/T 5009.18 formulated solution 1.0mL equivalent to 5μg fluorine. A.5.2 Analysis step Weigh the sample 5g, according to GB/T 5009.18 ashed distillation - Fluor reagent colorimetric assay. A.6 pH (10% aqueous solution) was measured 5g sample taken with water to 50mL, with a pH meter pH. A.7 Determination of heavy metals (Pb) of A.7.1 Reagents and materials A.7.1.1 6mol/L hydrochloric acid. Measure 50mL of hydrochloric acid, diluted with water to 100mL. A.7.1.2 1% nitric acid. Take 1mL of nitric acid diluted with water to 100mL. A.7.1.3 pH3.5 acetate buffer solution. Weigh 25.0g of ammonium acetate was dissolved in 25mL of water was added 45mL6moL/L hydrochloric acid, Dilute hydrochloric acid or dilute ammonia water to adjust the pH to 3.5, dilute with water to 100mL. A.7.1.4 thioacetic acid amine solution. Weigh thioacetic acid amine 4g, add water to dissolve into a 100mL, home refrigerator. To take the mixed before use Liquid [take sodium hydroxide solution (1mol/L) 15mL, 5.0mL water and glycerin mixed 20mL shake] 5.0mL, add this solution 1.0mL, home Heating the water bath 20s, cooling, use immediately. A.7.1.5 Lead standard solution. Weigh 0.1598g purity lead nitrate, dissolved 10mL1% nitric acid, transferred quantitatively into 100mL volumetric flask Diluted with water to the mark, and this solution 1mL equivalent to 1.0mg. Before use diluted with water 100 times, so that a 1.0mL equivalent to 10μg lead. A.7.2 Analysis step A.7.2.1 A tube. Take 50mL Nessler colorimetric tube, added to the tube of lead standard solution 2.0mL and pH3.5 acetate buffer 2mL, Diluted with water to 25mL. A.7.2.2 B Tube. Take the A tube supporting 50mL Nessler colorimetric tube, added to the tube sample 2g, add water to 25mL. A.7.2.3 to A, B two were added thioacetic acid amine solution 2mL, and add water to 50mL, mixing, placing 2min on white back Under King observed, B can not be deeper than the color tube A tube chromaticity. A.8 oxalate test A.8.1 Reagents and materials A.8.1.1 glacial acetic acid. A.8.1.2 calcium acetate solution. 100g/L. A.8.2 Analysis step Take a sample 1g, add water 10mL, ice acetic acid and 2 drops of calcium acetate solution 5mL, standing 5min solution should remain clear. ......

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