GB 1886.210-2016 PDF EnglishUS$190.00 · In stock · Download in 9 seconds
GB 1886.210-2016: National Food Safety Standard -- Food Additives -- Propionic acid Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedure Status: Valid
Similar standardsGB 1886.210-2016: National Food Safety Standard -- Food Additives -- Propionic acid---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GB1886.210-2016GB NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA National food safety standard - Food additives - Propionic acid ISSUED ON: AUGUST 31, 2016 IMPLEMENTED ON: JANUARY 01, 2017 Issued by: National Health and Family Planning Commission of PRC Table of Contents1 Scope ... 3 2 Chemical name, molecular formula, structural formula, relative molecular mass ... 3 3 Technical requirements ... 3 Appendix A Testing method ... 5 National food safety standard - Food additives - Propionic acid1 ScopeThis standard applies to propionic acid, which is refined by industrial synthesis.2 Chemical name, molecular formula, structural formula,relative molecular mass 2.1 Chemical name Propionic acid 2.2 Molecular formula C3H6O2 2.3 Structural formula 2.4 Relative molecular mass 74.08 (according to 2013 international relative atomic mass)3 Technical requirements3.1 Sensory requirements Sensory requirements shall comply with Table 1.Appendix ATesting method A.1 Warning Some reagents used in the test methods of this standard are toxic or corrosive. Appropriate safety and protective measures shall be taken during operation. A.2 General provisions Unless other requirements are specified, the reagents and water used in this standard refer to analytically pure reagents and grade-3 water specified in GB/T 6682. The standard solutions, standard solutions for impurity determination, preparations and products used in the test shall be prepared, in accordance with the provisions of GB/T 601, GB/T 602, GB/T 603, unless other requirements are indicated. The solutions used in the test refer to aqueous solutions, unless the solvent used to prepare them is specified. A.3 Identification test Take 1 mL of specimen. Add 3 drops of sulfuric acid and 1 mL of ethanol. Heat it. It shall have an aromatic smell. A.4 Determination of propionic acid A.4.1 Reagents and materials A.4.1.1 Phenolphthalein indicator solution: 1% ethanol solution. A.4.1.2 Standard titration solution of sodium hydroxide: c (NaOH) = 0.5 mol/L. A.4.2 Analytical procedures Weigh 1.5 g of specimen, accurate to 0.0002 g. Put it into a 250 mL conical flask. Add 100 mL of newly boiled and cooled water. Add 2 drops of phenolphthalein indicator. Use sodium hydroxide standard titration solution to titrate, until red color does not fade for 30 s, which is taken as the end point. A.4.3 Result calculation The mass fraction w1 of propionic acid content is calculated according to formula (A.1): Where: V0 - The volume of iodine standard titration solution, which is consumed during the blank test, in milliliters (mL); V1 - The volume of iodine standard titration solution, which is consumed when measuring the aldehyde content in the specimen, in milliliters (mL); M - The molar mass of propionaldehyde, in grams per mole (g/mol) [M (C3H6O) = 58.08]; m - The mass of the specimen, in grams (g); 1000 - Conversion factor; 2 - Molar conversion factor. The test results are based on the arithmetic mean of parallel measurement results (retaining 3 decimal places). The absolute difference between two independent determination results, which are obtained under repeatability conditions, is not greater than 10% of the arithmetic mean. A.6 Determination of easy oxidants (calculated as formic acid) A.6.1 Reagents and materials A.6.1.1 Sodium hydroxide. A.6.1.2 Bromine. A.6.1.3 Sodium acetate solution: 200 g/L. A.6.1.4 Potassium iodide solution: 250 g/L. A.6.1.5 Hydrochloric acid. A.6.1.6 Sodium thiosulfate standard titration solution: c (Na2S2O3) = 0.1 mol/L. A.6.2 Analytical procedures Dissolve 15 g of sodium hydroxide in 50 mL water. Cool it. Add 6 mL of bromine. Stir thoroughly to dissolve completely. Use water to dilute to 2000 mL. Take 25.0 mL of this solution and place it in a 250 mL stoppered conical flask, which contains 100 mL of water. Add 10 mL of sodium acetate solution and 10 g of specimen (accurate to 0.001 g). Leave it for 15 minutes. Add 5 mL of potassium iodide and 10 mL of hydrochloric acid. Use sodium thiosulfate standard titration solution to make titration, until the brown color disappears. Do a blank test at the same time. A.6.3 Result calculation ......Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al. Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of English version of GB 1886.210-2016 be delivered?Answer: The full copy PDF of English version of GB 1886.210-2016 can be downloaded in 9 seconds, and it will also be emailed to you in 9 seconds (double mechanisms to ensure the delivery reliably), with PDF-invoice.Question 2: Can I share the purchased PDF of GB 1886.210-2016_English with my colleagues?Answer: Yes. The purchased PDF of GB 1886.210-2016_English will be deemed to be sold to your employer/organization who actually paid for it, including your colleagues and your employer's intranet.Question 3: Does the price include tax/VAT?Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countriesQuestion 4: Do you accept my currency other than USD?Answer: Yes. www.ChineseStandard.us -- GB 1886.210-2016 -- Click this link and select your country/currency to pay, the exact amount in your currency will be printed on the invoice. Full PDF will also be downloaded/emailed in 9 seconds.How to buy and download a true PDF of English version of GB 1886.210-2016?A step-by-step guide to download PDF of GB 1886.210-2016_EnglishStep 1: Visit website https://www.ChineseStandard.net (Pay in USD), or https://www.ChineseStandard.us (Pay in any currencies such as Euro, KRW, JPY, AUD).Step 2: Search keyword "GB 1886.210-2016". Step 3: Click "Add to Cart". If multiple PDFs are required, repeat steps 2 and 3 to add up to 12 PDFs to cart. Step 4: Select payment option (Via payment agents Stripe or PayPal). Step 5: Customize Tax Invoice -- Fill up your email etc. Step 6: Click "Checkout". Step 7: Make payment by credit card, PayPal, Google Pay etc. After the payment is completed and in 9 seconds, you will receive 2 emails attached with the purchased PDFs and PDF-invoice, respectively. Step 8: Optional -- Go to download PDF. Step 9: Optional -- Click Open/Download PDF to download PDFs and invoice. See screenshots for above steps: Steps 1~3 Steps 4~6 Step 7 Step 8 Step 9 |
