GB 1886.218-2016 English PDFUS$159.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. GB 1886.218-2016: Food additive -- Brilliant blue aluminum lake Status: Valid
Basic dataStandard ID: GB 1886.218-2016 (GB1886.218-2016)Description (Translated English): Food additive -- Brilliant blue aluminum lake Sector / Industry: National Standard Classification of Chinese Standard: X42 Word Count Estimation: 8,819 Date of Issue: 2016-08-31 Date of Implementation: 2017-01-01 Older Standard (superseded by this standard): GB 7655.2-2005 Regulation (derived from): Announcement of the State Administration of Public Health and Family Planning 2016 No.11 Issuing agency(ies): National Health and Family Planning Commission of the People's Republic of China, State Food and Drug Administration GB 1886.218-2016: Food additive -- Brilliant blue aluminum lake---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 safety national standard - Food additive - Bright blue aluminum lake) National Standards of People's Republic of China National Food Safety Standard Food Additives bright blue aluminum lake Issued on. 2016-08-31 2017-01-01 implementation People's Republic of China National Health and Family Planning Commission released ForewordThis standard replaces GB 7655.2-2005 "food additive Brilliant blue aluminum lake." This standard compared with GB 7655.2-2005, the main changes are as follows. --- Standard name was changed to "national food safety standards for food additives bright blue aluminum lake"; --- Increasing the chemical name, molecular weight; --- Modify the content of the indicator; --- Index name Appearance modify sensory requirements, modify the index requirements; --- Hydrochloric acid and ammonia water insolubles Index name changed to hydrochloric acid insoluble matter was revised test methods; --- Heavy Metals (as Pb) Index name changed to lead, to modify the index requirements and test methods; --- Remove the drying loss, vice dye, barium index requirements and test methods; --- Modify the identification test testing methods; --- Revised test methods for arsenic. National Food Safety Standard Food Additives bright blue aluminum lake1 ScopeThis standard applies to food additives and bright blue aluminum as raw materials by lake and prepared food additive Brilliant blue aluminum lake.2 Chemical name and relative molecular mass2.1 Chemical Name 3- [N- Ethyl -N- [4 - [[4- [N- Ethyl -N- (3- sulfo-benzyl) - amino] phenyl] (2-sulfophenyl) methylene ] -2,5-cyclohexadiene Yl-1-ylidene] methyl amino] -, disodium salt of benzenesulfonic acid aluminum lake. 2.2 relative molecular mass 792.85 (with bright blue meter) (according to 2013 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 blue State powder Take the right amount of sample is placed in a clean, dry white porcelain dish, self Under natural light, observe its color and status 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 Bright blue content, w /% in line with claims in Appendix A A.4 Hydrochloric acid insoluble matter, w /% ≤ 0.5 A.5 in Appendix A Arsenic (As)/(mg/kg) ≤ 3.0 GB 5009.11 or GB 5009.76 Lead (Pb)/(mg/kg) ≤ 5.0 GB 5009.12 or GB 5009.75Appendix ATesting method A.1 Safety Tips Reagents The standard test methods used for toxic or corrosive, the operation should take appropriate safety and health practices. A.2 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. test 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 prepared. Solution was used in the tests did not indicate what is formulated with solvent, it refers to an aqueous solution. A.3 Identification Test A.3.1 Reagents and solutions A.3.1.1 sulfuric acid solution. 120. A.3.1.2 hydrochloric acid solution. 14. A.3.1.3 sodium hydroxide solution. 100g/L. A.3.1.4 ammonium acetate solution. 1.5g/L. A.3.1.5 activated carbon. A.3.2 Instruments and Equipment A.3.2.1 Spectrophotometer. A.3.2.2 cuvette. 10mm. A.3.3 Analysis step A.3.3.1 color reaction Weigh about 0.1g sample, add 5mL sulfuric acid solution continuously shaken in a water bath and heated for about 5min, the solution was blue, after cooling, to take on Clarification layer drops 2 drops to 3 drops, add 5mL water, continued to show blue. A.3.3.2 aluminum reaction Weigh about 0.1g sample, add 5mL hydrochloric acid solution and heated in a water bath, so that most of the dissolved. Add 0.5g of activated carbon, shake well Uniform, cooled and filtered. Take a colorless filtrate, add sodium hydroxide solution and after rendering aluminum reaction. A.3.3.3 maximum absorption wavelength Weigh about 0.1g sample, add sulfuric acid solution 5mL, heated and dissolved in a water bath after the full mix, add ammonium acetate solution equipped to 100mL. Centrifuged the solution is not clarified. Then take this solution 1mL ~ 5mL, plus ammonium acetate solution equipped to 100mL. Spectrophotometer 10mm cuvette to be measured, a maximum absorption wavelength of this solution is 628nm ~ 632nm. Note. The measured absorbance should be 0.3 to 0.7, otherwise adjust the sample concentration. A.4 Determination of bright blue Content A.4.1 Titanium trichloride titration (Arbitration Act) A.4.1.1 Method summary In acidic medium, light blue is titanium trichloride reductive decomposition, according to the consumption of titanium trichloride standard titration solution, calculate its content. A.4.1.2 Reagents and materials A.4.1.2.1 sodium bitartrate. A.4.1.2.2 titanium trichloride standard titration solution. c (TiCl3) = 0.1mol/L (now with the existing, method of preparation see Appendix B). A.4.1.2.3 sulfuric acid solution. 120. A.4.1.2.4 Carbon dioxide. content ≥99%. A.4.1.3 instruments and equipment Titanium trichloride titration apparatus shown in Figure A.1. Explanation. A --- conical flask (a 500 mL); B --- brown burette (50mL); C --- package under glass bottle of black paper (2000mL); D --- containing ferrous sulfate and ammonium carbonate equivalent mixture container (5000mL); E --- piston; F --- bottles; G --- washing bottle filled with water. Figure A.1 apparatus of FIG titanium trichloride titration A.4.1.4 analysis step Weigh about 2g sample (accurate to 0.0001g), placed in 500mL conical flask, sulfuric acid solution 20mL and 50mL freshly boiled Of water and cooled to room temperature, and constantly shaken water bath heated to dissolve, was added 15g sodium hydrogen tartrate and 150mL of freshly boiled water, shaking After dissolution, according to Figure A.1 instrument installed at the level of carbon dioxide introduced into the same time, heated to boiling, and treated with titanium trichloride standard titration solution drop Given the inherent color of the sample solution to disappear as the end point. A.4.1.5 Calculation Results Bright blue content of the mass fraction w1, according to equation (A.1) Calculated. w1 = V × c × M m × 1000 × 2 × 100% (A.1) Where. Volume V --- titrate the sample consumed titanium trichloride standard titration solution, in milliliters (mL); C --- concentration of titanium trichloride standard titration solution, expressed in moles per liter (mol/L); --- The M molar mass of brilliant blue, in units of grams per mole (g/mol) [M (C37H34N2Na2O9S3) = 792.85]; M --- the quality of the sample, in grams (g); 1000 --- volume conversion factor; 2 --- molar conversion coefficient. The results parallel arithmetic mean of the measurement results shall prevail (reserved a decimal). In two independent test repeated conditions Given absolute difference is not more than the arithmetic mean of 1.0%. A.4.2 Colorimetric method A.4.2.1 Method summary After dissolving each sample with a known water content in bright blue reference, at the maximum absorption wavelength, were measured absorbance, then calculate Its content. A.4.2.2 Reagents and materials A.4.2.2.1 ammonium acetate solution. 1.5g/L. A.4.2.2.2 bright blue Reference Sample. Content ≥85.0% (measured according to A.4.1). A.4.2.2.3 sulfuric acid solution. 120. A.4.2.3 instruments and equipment A.4.2.3.1 spectrophotometer. A.4.2.3.2 cuvette. 10mm. Preparation A.4.2.4 brilliant blue of the reference solution Weigh about 0.25g bright blue standard (accurate to 0.0001g), was dissolved in an appropriate amount of water, transferred to 1000mL volumetric flask, diluted with water To the mark. Imbibe 10mL, transferred to 500mL volumetric flask, add ammonium acetate solution was diluted to the mark, shake well and set aside. Preparation of the sample solution A.4.2.5 bright blue aluminum lake It weighs about 0.5g bright blue aluminum lake sample (accurate to 0.0001g), was added sulfuric acid solution 20mL and 50mL freshly boiled and cooled to Room temperature water, constantly shaking water bath heated to dissolve, transferred to 1000mL volumetric flask, diluted with water to the mark. Draw 10mL, Transferred to 500mL volumetric flask, add ammonium acetate solution was diluted to the mark, shake, alternate (maximum absorption wavelength absorbance should be 0.3 to 0.7). A.4.2.6 analysis step The bright blue sample solution and reference solution bright blue aluminum lake were placed in 10mm cuvettes, with the maximum absorption wavelength by spectrophotometric Photometer respective absorbance ammonium acetate solution as reference solution. A.4.2.7 Calculation Results Bright blue content of the mass fraction w1, according to equation (A.2) Calculated. w1 = A1 × m0 A0 × m1 × w0 × 100% (A.2) Where. A1 --- absorbance of the sample solution; m0 --- bright blue reference mass, expressed in grams (g); A0 --- blue light absorbance of the reference solution; M1 --- the quality of the sample, in grams (g); w0 --- bright blue reference mass fraction of (measured according to A.4.1),%. The results parallel arithmetic mean of the measurement results shall prevail (reserved a decimal). In two independent test repeated conditions Given absolute difference is not more than the arithmetic mean of 1.0%. A.5 Determination of hydrochloric acid insoluble matter A.5.1 Reagents and solutions A.5.1.1 hydrochloric acid. A.5.1.2 hydrochloric acid solution. 5995. A.5.2 Instruments and Equipment A.5.2.1 crucible glass frit (G4). a pore size of 5μm ~ 15μm. A.5.2.2 oven thermostat. A.5.3 Analysis step Weigh about 5g sample (accurate to 0.001g), placed in 600mL beaker, add 60mL of water and 60mL of hydrochloric acid, cover the surface of the dish after Heated to boiling, until the lake is completely dissolved. After cooling, has 135 ℃ ± 2 ℃ drying to constant glass sand core crucible (G4) was filtered and dried Heated to 50 ℃ ~ 70 ℃ hot hydrochloric acid solution was washed beakers and glass sand core crucible (G4), until the lotion colorless, then at 135 ℃ ± 2 ℃ Thermostatic oven drying to constant weight. A.5.4 Calculation Results The mass fraction of hydrochloric acid insolubles meter w2, according to equation (A.3) Calculated. w2 = m2-m3 m4 × 100% (A.3) Where. m2 --- After drying quality hydrochloric acid insoluble matter and sand core glass crucible, in grams (g); M3 --- quality glass sand core crucible in grams (g); m4 --- sample mass, in grams (g). The results parallel arithmetic mean of the measurement results shall prevail (reserved a decimal). In two independent test repeated conditions Given absolute difference is not more than 0.2% of the arithmetic mean.Appendix BThe method of preparation of titanium trichloride standard titration solution B.1 Reagents and materials B.1.1 hydrochloric acid. B.1.2 ferrous ammonium sulfate. B.1.3 ammonium thiocyanate solution.200g/L. B.1.4 sulfuric acid solution. 11. B.1.5 titanium trichloride solution. B.1.6 potassium dichromate standard titration solution. c ( 6K2Cr2O7 ) = 0.1mol/L. B.2 instruments and equipment Titration apparatus shown in Figure A.1. Formulated B.3 titanium trichloride standard titration solution B.3.1 preparation Take 100mL titanium trichloride solution and 75mL of hydrochloric acid placed 1000mL brown volumetric flask with freshly boiled and cooled to room temperature Diluted with water to the mark, shake, immediately poured into a dark bottle under the mouth, under the protection of stored carbon dioxide gas. B.3.2 Calibration Weigh about 3g (accurate to 0.0001g) ferrous ammonium sulfate, 500mL Erlenmeyer flask placed under protective effect of carbon dioxide gas flow, plus Into 50mL freshly boiled and cooled water to dissolve, then add 25mL sulfuric acid was added, and the carbon dioxide stream fed subsurface for Protection, quickly and accurately added 35mL potassium dichromate standard titration solution, and then to be calibrated titanium trichloride standard solution titration to near meter Count the amount of the end, immediately added 25mL solution of ammonium thiocyanate, and continue to be calibrated with a standard solution of titanium trichloride titration to red to green Color, is the end. Entire titration should be under the protection of carbon dioxide gas flow operations, while doing the blank test. B.3.3 Calculation Results Titanium trichloride standard solution concentration c TiCl3 (), in units of moles per liter (mol/L), according to equation (B.1) Calculated. c TiCl3 () = V × c V1-V2 (B.1) Where. Volume V --- potassium dichromate standard titration solution, in milliliters (mL); Concentration c --- Potassium dichromate standard titration solution, expressed in moles per liter (mol/L); V1 --- titration volume has been oxidized to potassium dichromate standard titration solution of titanium trichloride standard titration solution of the high titanium elapsed, the unit is Milliliter (mL of); V2 --- blank titration volume of spent titanium trichloride standard titration solution, in milliliters (mL). The results indicate four decimal. 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