GB 1886.42-2015 English PDFUS$189.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. GB 1886.42-2015: National Food Safety Standard -- Food Additives -- Dl-tartaric acid Status: Valid
Basic dataStandard ID: GB 1886.42-2015 (GB1886.42-2015)Description (Translated English): National Food Safety Standard -- Food Additives -- Dl-tartaric acid Sector / Industry: National Standard Classification of Chinese Standard: X42 Classification of International Standard: 67.220.20 Word Count Estimation: 9,952 Date of Issue: 2015-09-22 Date of Implementation: 2016-03-22 Older Standard (superseded by this standard): GB 15358-2008 Regulation (derived from): PRC National Health and Family Planning Commission 2015 No.8 Issuing agency(ies): National Health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 the maleic anhydride and hydrogen peroxide as raw materials by oxidation, hydrolysis and prepared in the food additive dl-tartaric acid. GB 1886.42-2015: National Food Safety Standard -- Food Additives -- Dl-tartaric acid---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 dl- tartrate) National Standards of People's Republic of China National Food Safety Standard Food Additives dl- tartrate 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 15358-2008 "Food Additives dl- tartrate." This standard compared with GB 15358-2008, the main changes are as follows. --- Standard name was changed to "national food safety standards for food additives dl- tartrate." National Food Safety Standard Food Additives dl- tartrate1 ScopeThis standard applies to maleic anhydride and hydrogen peroxide as raw materials through oxidation, hydrolysis and prepared food additive dl- tartrate. 2 chemical name, molecular formula, molecular mass and structural formula 2.1 Chemical Name 2,3-dihydroxybutanedioic acid Formula 2.2 C4H6O6 · nH2O (the crystals of n = 1, dry product n = 0) 2.3 formula 2.4 relative molecular mass 168.10 (crystalline product) (according to 2007 international relative atomic mass) 150.09 (dry product) (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 Claim Anhydrous crystalline product products Testing method Colorless or white color white State crystal or crystalline powder particles or powder Take the right amount of sample is placed in a clean, dry white porcelain dish, self However, its color and light observation 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 dl- tartaric acid (C4H6O6) content (dry basis), w /% ≥ 99.5 Appendix A A.4 Melting range/℃ 200 ~ 206 Appendix A A.5 Loss on drying, w /% Crystalline product ≤ 11.5 Dry goods ≤ 0.5 A.6 in Appendix A Residue on ignition, w /% ≤ 0.1 Appendix A A.7 Sulfate (SO4 dollars), w /% ≤ 0.04 Appendix A A.8 Yi oxide by testing A.9 in Appendix A Heavy metals (Pb)/(mg/kg) ≤ 10.0 GB 5009.74 Arsenic (As)/(mg/kg) ≤ 2.0 GB 5009.76Appendix ATesting method A.1 Warning Test procedure may lead to dangerous situations. The operator shall 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 In the standard titration solution, impurity measurement standard solution, preparations and products, did not indicate when the other requirements, according to GB/T 601, GB/T 602 and 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 Optical Test Weigh 1.0g sample accurate to 0.01g, add water to dissolve 10mL, according to the provisions of GB/T 613 was measured to be optically inactive. A.3.2 pH test Weigh 1.0g sample accurate to 0.01g, add water to dissolve 10mL, blue litmus paper test, should be red. A.3.3 reactivity test Tartrate A.3.3.1 Reagents and materials A.3.3.1.1 nitrate. A.3.3.1.2 sulfuric acid. A.3.3.1.3 sodium hydroxide solution. 40g/L. A.3.3.1.4 silver nitrate solution. 20g/L. A.3.3.1.5 ammonia solution. 2 → 5. A.3.3.1.6 acetic acid solution. 1 → 4. A.3.3.1.7 solution of ferrous sulfate. 80g/L. A.3.3.1.8 hydrogen peroxide solution. 1 → 10. A.3.3.1.9 resorcinol solution. 20g/L. A.3.3.1.10 potassium bromide solution. 100g/L. A.3.3.2 analysis step A.3.3.2.1 Preparation of sample solution. Weigh 5.0g sample accurate to 0.01g, add a little water to dissolve, then sodium hydroxide solution and to Neutral, add water to 100mL, as a sample solution A. A.3.3.2.2 add silver nitrate solution in the sample solution A, a white precipitate. Separating the precipitate, add nitric acid when its part, namely precipitation Dissolved. Add ammonia solution and heated in another part of the precipitate was dissolved slowly and should generate silver mirror. A.3.3.2.3 Two drops of acetic acid, one drop of ferrous sulfate solution, 2 drops to 3 drops of hydrogen peroxide solution and an excess of sodium hydroxide solution in the sample A solution, that is significant purple to purple. A.3.3.2.4 pre ~ 5mL added 2 drops 3 drops of sulfuric acid and 2 drops of a solution of resorcinol to 3 drops of potassium bromide solution was added 2 drops ~ 3 drops of sample solution A, heated in a water bath 5min ~ 10min, the solution should be obvious dark blue. After cooling, the excess of water injection, should significantly red. Determination A.4 dl- tartaric acid (C4H6O6) content (dry basis) of A.4.1 Method summary Phenolphthalein as indicator, titrated with sodium hydroxide standard sample (first dried) solution, according to standard titration with sodium hydroxide solution , Total acid content calculated in terms of dl- tartaric acid C4H6O6 content. A.4.2 Reagents and materials A.4.2.1 standard Huai sodium hydroxide titration solution. c (NaOH) = 0.1mol/L. A.4.2.2 phenolphthalein indicator solution. 10g/L. A.4.3 Analysis step A.4.3.1 crystalline sample processing products. Weigh about 5g samples, accurate to 0.0002g, placed in a constant quality of the weighing bottle with lid, in Dried to a constant mass, as an oven 105 ℃ ± 2 ℃ of dried B. A.4.3.2 For crystalline product weighed about 2g dried B (A.4.3.1), accurate to 0.0002g; for dry goods, weigh about 2g dried D (A.6.2), accurate to 0.0002g. Dissolved in water, move to 250mL volumetric flask, dilute to the mark, Pipette 25mL ± 0.02mL in 250mL conical flask, add 2 drops of phenolphthalein indicator solution, titration with sodium hydroxide standard solution to reddish, maintaining 30s does not fade as the end point. A.4.3.3 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 dl- tartaric acid (C4H6O6) content (dry basis) of the mass fraction w1, according to equation (A.1) Calculated. w1 = V1-V0 1000 × c × M m1 × × 100% (A.1) Where. Volume V1 --- sample consumption of sodium hydroxide standard titration solution, in milliliters (mL); V0 --- blank test volume consumed sodium hydroxide standard titration solution, in milliliters (mL); 1000 --- conversion factor; C --- concentration of sodium hydroxide standard titration solution, expressed in moles per liter (mol/L); M --- dl- tartrate molar mass in grams per mole (g/mol), [M ( 2C4H6O6 ) = 75.04]; M1 --- the quality of the sample, in grams (g); Volume 25 --- measured for the sample solution taken, in milliliters (mL); 250 --- volume of treated samples of constant volume, in milliliters (mL). Calculation result to two decimal places. 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 the melting point range Performed according to GB/T 617-2006 4.1 requirements. A.6.2 dry matter content of the sample C, dried D, silicone oil heat transfer liquid. The difference between two parallel determination results, initial and final melting point melting point of not more than 0.4 ℃, whichever is the arithmetic average of the measurement results. A.6 Determination of loss on drying A.6.1 according to the provisions of GB 5009.3 direct drying were drying temperature is 105 ℃ ± 2 ℃. Weigh the amount of product crystallized sample was 1g, Accurate to 0.0002g; anhydrous product sample weighed amount of 6g, accurate to 0.0002g. A.6.2 crystalline product dried C reserved for determination of melting range of dry goods dried D reserved for determination of tartaric acid content and melting point dl- range. 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 0.05%. A.7 Determination of residue on ignition A.7.1 Reagents and materials sulfuric acid. A.7.2 Analysis step Weigh 2g ~ 3g samples, accurate to 0.0001g, set to a constant burning quality 25mL porcelain crucible at 500 ℃ ± 25 ℃, Adding a few drops of sulfuric acid completely wet the sample is heated with warm fire to sample completely carbonized, cooled to room temperature. Add approximately 1mL of sulfuric acid wet residue, The method described above was heated to sulfuric acid vapor Yat do. Burning 3h at 500 ℃ ± 25 ℃, cooled to room temperature and weighed on a silica gel desiccator, the precise To 0.0001g. In this case the mass fraction of residues should be 0.10% or less, or such, should ignition residue to constant mass. A.7.3 Calculation Results Burning residue mass fraction w2, according to equation (A.2) Calculated. w2 = m2 m3 × 100% (A.2) Where. m2 --- residue mass in grams (g); m3 --- sample mass, in grams (g). 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 0.005%. A.8 Sulfate (SO4 meter) measurement Conducted in accordance with GB/T 9728's. Weigh 0.25g sample processing for the sample to the nearest 0.001g, placed in 50mL colorimetric tube, Add approximately 20mL water to dissolve. Amount of 1mL ± 0.02mL (sulfate-containing 0.1mg) sulphate (SO4) solution was prepared by standard limits. Determination A.9 Easy oxides A.9.1 Method summary Under acidic conditions, the reaction solution is easily oxidized substance in the sample with potassium permanganate, potassium permanganate solution faded so purple, visually count When the method was measured. A.9.2 Reagents and materials A.9.2.1 sulfuric acid solution. 1 → 20. A.9.2.2 standard potassium permanganate titration solution. c ( 5KMnO4 ) = 0.1mol/L. A.9.3 Analysis step Weigh 1.0g sample accurate to 0.01g, add water 25mL and 25mL sulfuric acid solution to dissolve, while maintaining 20 ℃ ± 1 ℃ conditions, plus 4.0mL standard titration solution of potassium permanganate, purple sample solution was allowed to stand under the condition does not go away is by testing within 3min. ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB 1886.42-2015_English be delivered?Answer: Upon your order, we will start to translate GB 1886.42-2015_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 1886.42-2015_English with my colleagues?Answer: Yes. 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