GB 1886.39-2015 English PDFUS$209.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. GB 1886.39-2015: National Food Safety Standard -- Food Additives -- Potassium sorbate Status: Valid
Basic dataStandard ID: GB 1886.39-2015 (GB1886.39-2015)Description (Translated English): National Food Safety Standard -- Food Additives -- Potassium sorbate Sector / Industry: National Standard Classification of Chinese Standard: X42 Classification of International Standard: 67.220.20 Word Count Estimation: 10,191 Date of Issue: 2015-09-22 Date of Implementation: 2016-03-22 Older Standard (superseded by this standard): GB 13736-2008 Regulation (derived from): PRC National Health and Family Planning Commission 2015 No.8 Issuing agency(ies): National Health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 Summary: This standard applies to sorbic acid and potassium carbonate (or potassium hydroxide) with water as solvent reaction of food additives potassium sorbate. GB 1886.39-2015: National Food Safety Standard -- Food Additives -- Potassium sorbate---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 potassium sorbate) National Standards of People's Republic of China National Food Safety Standard Food additives potassium sorbate Issued on. 2015-09-22 2016-03-22 implementation People's Republic of China National Health and Family Planning Commission released ForewordThis standard replaces GB 13736-2008 "Food additive potassium sorbate." This standard compared with GB 13736-2008, the main changes are as follows. --- Standard name was changed to "national food safety standards for food additives potassium sorbate." National Food Safety Standard Food additives potassium sorbate1 ScopeThis standard applies to sorbic acid and potassium carbonate (or potassium hydroxide) water as a solvent in the reaction of food additives potassium sorbate. 2 chemical name, molecular formula, molecular mass and structural formula 2.1 Chemical Name Trans, trans-2,4-hexadiene potassium Formula 2.2 C6H7KO2 2.3 formula CH3CH = CHCH = CHCOOK 2.4 relative molecular mass 150.22 (according to 2007 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 White or off-white color The state of a powder or granules Take the right amount of sample is placed in a clean, dry white porcelain dish, under natural light, Observe the 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 Potassium sorbate (to C6H7KO2 dollars) (dry basis), w /% 98.0 ~ 101.0 Appendix A A.4 Loss on drying, w /% ≤ 1.0 A.5 in Appendix A Chloride (Cl dollars), w /% ≤ 0.018 A.6 in Appendix A Sulfate (SO4 dollars), w /% ≤ 0.038 Appendix A A.7 Formaldehyde (HCHO in dollars), w /% ≤ 0.1 Appendix A A.8 Heavy metals (Pb)/(mg/kg) ≤ 10.0 GB 5009.74 Arsenic (As)/(mg/kg) ≤ 3.0 GB 5009.76 Lead (Pb)/(mg/kg) ≤ 2.0 GB 5009.75 Clarity test by A.9 in Appendix A The free base in Appendix A test A.10Appendix ATesting method A.1 Warning Reagents The standard test methods used for toxic or corrosive, care should be taken. As splashed on the skin should stand That is rinsed with water, severe cases should be treated immediately. When using the virulent, should be strictly in accordance with the relevant provisions of the management; should be used to avoid inhalation or skin Skin contact should be necessary in a fume hood. 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 of preparation. 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 principle of the method A.3.1.1 hydrogen tartrate potassium sorbate, sodium reacts with ethanol insoluble white precipitate potassium tartrate. A.3.1.2 potassium sorbate and bromine addition reaction of bromine leaving brown disappear. A.3.1.3 potassium sorbate unsaturated group characteristic absorption in the UV area. A.3.2 Reagents and materials A.3.2.1 ethanol. A.3.2.2 hydrochloric acid solution. 13. A.3.2.3 saturated solution of sodium hydrogen tartrate. A.3.2.4 bromine saturated solution. A.3.2.5 hydrochloric acid solution. 91000. A.3.3 Instruments and Equipment UV spectrophotometer. A.3.4 Analysis step A.3.4.1 Weigh 1g sample accurate to 0.01g, was dissolved in 100mL water, adding 5mL saturated tartaric 5mL in the sample solution Sodium bicarbonate solution and 5mL of anhydrous ethanol, shake, there should be a transparent white precipitate formation. A.3.4.2 Weigh 1g sample accurate to 0.01g, was dissolved in 100mL of water, the sample solution in 10mL, acetone 1mL, dropping Hydrochloric acid solution (A.3.2.2) to make into a weak acid, add 2 drops of bromine solution when shaken, the bromine color should disappear. A.3.4.3 Weigh 50mg samples, accurate to 0.1mg, soluble in water, dilute to 250.0mL, draw 2.0mL, with hydrochloric acid solution (A.3.2.5) dilute Release to 200.0mL, in 230nm ~ 350nm spectrophotometrically measured, the solution should have a maximum absorption at 264nm ± 2nm at most Than large absorbance at the absorption should be 1650 to 1900. A.4 potassium sorbate (to C6H7KO2 dollars) (dry basis) of the Determination A.4.1 Method summary Dried sample with glacial acetic acid as the solvent, acetic anhydride as a co-solvent, with crystal violet as indicator, titration with perchloric acid standard solution titration, according to Consumption of perchloric acid standard titrant volume calculation potassium sorbate content. A.4.2 Reagents and materials A.4.2.1 glacial acetic acid. A.4.2.2 acetic anhydride. A.4.2.3 perchloric acid standard titration solution. c (HClO4) = 0.1mol/L. A.4.2.4 crystal violet indicator solution. 5g/L. A.4.3 Analysis step A.4.3.1 Weigh about 0.2g dried (A.5.2), accurate to 0.0002g, it has been placed into 48mL 2mL glacial acetic acid and acetic anhydride 250mL iodine bottle, warmed to make a solution. Cooled to room temperature, add 2 drops of crystal violet indicator solution, titration with perchloric acid standard solution titration to dissolve Solution from purple to blue-green endpoint. A.4.3.2 measured at the same time, according to the same procedure and the determination of the sample without using the same amount of reagent blank test solution. A.4.4 Calculation Results Potassium sorbate (to C6H7KO2 dollars) (dry basis) of the mass fraction w1, according to equation (A.1) Calculated. w1 = (V1-V2) êê úú × c × M m × 100% (A.1) Where. V1 --- sample consumed perchloric acid standard titration solution volume in milliliters (mL); V2 --- blank test consumption volume perchloric acid standard titration solution, in milliliters (mL); 1000 --- conversion factor; Concentration c --- perchloric acid standard titration solution, expressed in moles per liter (mol/L); --- The M molar mass of potassium sorbate in grams per mole (g/mol), [M (C6H7KO2) = 150.2]; M --- the quality of the sample, in grams (g). The results parallel arithmetic mean of the measurement results shall prevail. Twice under the same condition of independent determination results obtained absolute difference Not more than 0.2%. A.5 Determination of loss on drying A.5.1 Method summary Excretion measured at a certain temperature in a sample can be volatile substance. A.5.2 Analysis step Weigh 2g ~ 3g samples, accurate to 0.0002g, placed in a pre dried to a constant mass of 105 ℃ ± 2 ℃ weighing bottle, paved Layer of 5mm or less. At 105 ℃ ± 2 ℃ constant temperature drying oven 3h, placed in a desiccator to cool 30min weighing. Reserved dried It was used to determine the content of potassium sorbate. A.5.3 Calculation Results Loss on drying mass fraction w2, according to equation (A.2) Calculated. w2 = m2-m1 m2 × 100% (A.2) Where. M2 --- dried before the mass of the sample, in grams (g); Quality, unit m1 --- after drying the sample in grams (g). The results parallel arithmetic mean of the measurement results shall prevail. Twice under the same condition of independent determination results obtained absolute difference Not more than 0.1%. A.6 chloride (Cl) Determination A.6.1 Method summary Chloride and silver nitrate generated silver chloride in an acidic (nitric acid) solution of white precipitate. The sample was dissolved in water under acidic conditions by adding nitrate Acid silver a white turbid, and the turbidity standard solution are compared, do a limited test. A.6.2 Reagents and materials A.6.2.1 nitric acid solution. 110. A.6.2.2 silver nitrate solution. 17g/L. A.6.2.3 chloride (Cl) standard solution. 0.18mg/mL. A.6.3 Analysis step Weigh 1g sample accurate to 0.01g, add water about 30mL dissolved, stirring plus nitric acid solution 11mL, filtered, washed with water, combined wash And filtrate were placed in 100mL colorimetric tube, add water to 50mL of the test solution. Another one colorimetric tube, add 1mL ± 0.02mL Chloride (Cl) standard solution, add 30mL water, add 6mL solution of nitric acid and water to 50mL with standard turbidity solution. Respectively, compared to two Color tube was added 1mL silver nitrate solution, mix well, avoid direct sunlight, place 5min, on a black background side or axial conducted Concept Police, turbidity test solution is not greater than the standard nephelometric turbidity of the solution. A.7 Sulfate (SO4 meter) measurement A.7.1 Method summary Sulfate and barium chloride in acid (HCl) solution, generating a white precipitate of barium sulfate, turbidity compared with the standard solution, do limit test. A.7.2 Reagents and materials A.7.2.1 hydrochloric acid solution. 14. A.7.2.2 barium chloride. 50g/L. A.7.2.3 sulphate (SO4) standard solution. 0.19mg/mL. A.7.3 Analysis step Weigh the sample 0.5g, accurate to 0.01g, add water about 30mL dissolved, stirring hydrochloric acid solution 3mL, filtered, washed with water, combined wash And filtrate to 100mL colorimetric tube, add water to 50mL, as the test solution. Take 1.0mL sulphate (SO4) standard solution in 100mL another branch colorimetric tube, add 1mL hydrochloric acid solution, add water to 50mL, As a standard turbidity solution. At the same time the test solution and standard turbidity solution of each 5mL plus barium chloride solution, placed after 10min observation, turbidity test solution Not greater than the turbidity standard turbidity solution. A.8 formaldehyde (HCHO to count) Determination A.8.1 principle of the method Formaldehyde and magenta sulfite from the addition reaction, as a result of the rearrangement, recovery purple substance quinoid structure, and standard colorimetric solution into Comparing, do a limited test. A.8.2 Reagents and materials A.8.2.1 isopropanol. A.8.2.2 hydrochloric acid solution. 9100. A.8.2.3 Formaldehyde standard solution. 0.1mg/mL. A.8.2.4 magenta - sulfite solution. 0.2g of fuchsin was dissolved in 120mL of hot water, was added 20mL freshly prepared 100g/L Sodium sulfite (NaSO3 · 7H2O) and 2mL of hydrochloric acid solution, transferred to a conical flask, bottle plugged with cotton wool, placed in the dark, the next day after the installation The brown bottle. A.8.3 Analysis step Weigh the sample 1g, accurate to 0.01g, was dissolved in 50mL of isopropyl alcohol and 30mL water, with hydrochloric acid solution to adjust the pH to 4 (with a precision Dipstick test), transferred to a 100mL volumetric flask, dilute to the mark. Take the above solution 10mL set 50mL colorimetric tube, and 1.0mL standard solution of formaldehyde, 4mL isopropanol and 5mL water into another 50mL colorimetric tube. Were then added two colorimetric tube Into 1mL magenta - sulfite solution, shake, place 30min after visual colorimetric test solution was red can not be deeper than the standard colorimetric Solution. A.9 Clarity test A.9.1 Reagents and materials A.9.1.1 hydrochloric acid solution. 24 → 1000. A.9.1.2 cobalt chloride (CoCl2 · 6H2O). mass fraction of cobalt chloride according to GB/T 605-2006 measured. A.9.1.3 ferric chloride (FeCl3 · 6H2O). mass fraction of iron chloride according to HG/T 3474-2000 were determined. A.9.1.4 cobalt chloride standard stock solution. Weigh the measured mass fraction of cobalt chloride, dissolved and diluted hydrochloric acid solution, and the solution in 1mL Cobalt chloride containing 59.5mg. A.9.1.5 ferric chloride liquid standard. Weigh the measured mass fraction of iron chloride, dissolved and diluted hydrochloric acid solution, and the solution in 1mL Ferric chloride containing 45mg. A.9.1.6 standard colorimetric stock solution. Take a standard cobalt chloride and ferric chloride stock solution 6mL standard stock solution 24mL in 100mL flask, salt Acid solution was diluted to 100mL. A.9.1.7 standard colorimetric solution. Take 12.5mL standard in 100mL volumetric flask, dilute colorimetric stock solution with hydrochloric acid solution to 100mL, mix Together evenly. A.9.2 Analysis step Weigh 0.2g sample accurate to 0.01g, placed in 10mL colorimetric tube, add 5.0mL dissolved in water as the test solution; take 5mL ± 0.02mL standard colorimetric solution was placed in another 10mL colorimetric tube, in the absence of direct sunlight, axial and lateral observation, test solution The color should not be deeper than the color standard colorimetric solution. A.10 free base test A.10.1 Method summary Phenolphthalein as an indicator, sulfuric acid standard titration solution with a predetermined amount of neutralization. A.10.2 reagents and materials A.10.2.1 sulfuric acid standard titration solution. c (12H2SO4) = 0.100mol/L. A.10.2.2 phenolphthalein indicator solution. 10g/L. A.10.3 Analysis steps Weigh 1.0g sample accurate to 0.01g, no carbon dioxide dissolved in about 20mL of water, add 2 drops of phenolphthalein indicator solution was red, plus Sulfuric acid standard titration solution 0.40mL, shake, red should disappear. ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB 1886.39-2015_English be delivered?Answer: Upon your order, we will start to translate GB 1886.39-2015_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 1886.39-2015_English with my colleagues?Answer: Yes. The purchased PDF of GB 1886.39-2015_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. 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