GB 1886.74-2015 PDF English
US$120.00 · In stock · Download in 9 secondsGB 1886.74-2015: National Food Safety Standard -- Food Additives -- Potassium citrate Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedureStatus: Valid
Standard ID | Contents [version] | USD | STEP2 | [PDF] delivery | Name of Chinese Standard | Status |
GB 1886.74-2015 | English | 120 |
Add to Cart
|
0-9 seconds. Auto-delivery
|
National Food Safety Standard -- Food Additives -- Potassium citrate
| Valid |
Excerpted PDFs (Download full copy in 9 seconds upon purchase)PDF Preview: GB 1886.74-2015
GB 1886.74-2015: National Food Safety Standard -- Food Additives -- Potassium citrate---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/GB1886.74-2015
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
National food safety standard - Food additives - Potassium
citrate
ISSUED ON: NOVEMBER 13, 2015
IMPLEMENTED ON: MAY 13, 2016
Issued by: National Health and Family Planning Commission of PRC
Table of Contents
Foreword ... 3
1 Scope ... 4
2 Chemical name, molecular formula, structural formula, relative molecular mass ... 4
3 Technical requirements ... 4
Appendix A Inspection method ... 6
National food safety standard - Food additives - Potassium
citrate
1 Scope
This standard applies to the food additive potassium citrate, which is prepared from
citric acid and potassium hydroxide or potassium carbonate.
2 Chemical name, molecular formula, structural formula,
relative molecular mass
2.1 Chemical name
Potassium 2-hydroxypropane-1,2,3 tricarboxylate
2.2 Molecular formula
C6H5K3O7·H2O
2.3 Structural formula
2.4 Relative molecular mass
324.41 (according to 2011 international relative atomic mass)
3 Technical requirements
3.1 Sensory requirements
Sensory requirements shall comply with the provisions of Table 1.
Appendix A
Inspection method
A.1 Warning
Some test procedures specified in the test methods may lead to hazardous situations.
Operators shall take appropriate safety and protective measures.
A.2 General provisions
The reagents and water used in this standard, unless otherwise required, refer to
analytically pure reagents and grade three water specified in GB/T 6682. Unless
otherwise specified, the standard titration solutions, standard solutions for impurity
determination, preparations and products used in the test methods shall be prepared, in
accordance with the provisions of GB/T 601, GB/T 602, GB/T 603. Unless otherwise
stated, the solutions used are all aqueous solutions.
A.3 Identification test
A.3.1 Reagents and materials
A.3.1.1 5% hydrochloric acid solution: Measure 117 mL of hydrochloric acid. Dilute it
to 1000 mL.
A.3.1.2 5% sulfuric acid solution: Measure 29 mL of sulfuric acid. Slowly inject it into
about 700 mL of water. Cool it. Dilute it to 1000 mL.
A.3.1.3 Mercury sulfate solution: Weigh 5 g of mercury oxide. Add 40 mL of water.
Slowly add 20 mL of concentrated sulfuric acid. Stir while adding. Add 40 mL of water
and stir to dissolve.
A.3.1.4 Potassium permanganate solution: .
A.3.1.5 Pyridine-acetic anhydride solution (3 + 1): Mix pyridine and acetic anhydride,
at a ratio of 3:1.
A.3.2 Analytical procedures
A.3.2.1 Put a small amount of specimen into a 25 mL crucible. Ignite it with direct fire,
which will slowly decompose; however, no caramel smell shall occur.
A.3.2.2 Take 2 mL of specimen solution. Add a few drops of sulfuric acid solution. Heat
to boiling. Add a few drops of potassium permanganate solution. Shake it; the purple
color disappears. Then add 1 drop of mercury sulfate solution, to form a white
...... Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
Tips & Frequently Asked QuestionsQuestion 1: How long will the true-PDF of English version of GB 1886.74-2015 be delivered?Answer: The full copy PDF of English version of GB 1886.74-2015 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 1886.74-2015_English with my colleagues?Answer: Yes. The purchased PDF of GB 1886.74-2015_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 1886.74-2015 -- 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 1886.74-2015?A step-by-step guide to download PDF of GB 1886.74-2015_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 1886.74-2015". 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
|