GB/T 12457-2008 English PDFUS$439.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 12457-2008: Determination of sodium chloride in foods Status: Obsolete GB/T 12457: Historical versions
Basic dataStandard ID: GB/T 12457-2008 (GB/T12457-2008)Description (Translated English): Determination of sodium chloride in foods Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: X04 Classification of International Standard: 67.050 Word Count Estimation: 11,142 Date of Issue: 2008-06-25 Date of Implementation: 2009-01-01 Older Standard (superseded by this standard): GB/T 12457-1990 Quoted Standard: GB/T 6682 Adopted Standard: ISO 1841-1981, NEQ; ISO 3634-1979, NEQ Regulation (derived from): National Standard Approval Announcement 2008 No.10 (Total No.123) Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China Summary: This standard specifies the indirect precipitation titration, determination of sodium chloride in food analysis steps potentiometric titration, and provides direct precipitation titration of sodium chloride in food analysis steps. This standard indirect and direct precipitation titration precipitation titration apply to meat products, aquatic products, vegetable products, preserved foods, seasoning, determination of starch products in sodium chloride. Does not apply to the determination of sodium chloride in food deep color, potentiometric titration method for the determination of these types of foods and deep colors sodium chloride in foods. GB/T 12457-2008: Determination of sodium chloride in foods---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.Determination of sodium chloride in foods ICS 67.050 X04 National Standards of People's Republic of China Replacing GB/T 12457-1990 Determination of sodium chloride in foods Posted 2008-06-25 2009-01-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released ForewordThis standard and ISO 1841. 1981 "Meat and meat products Determination of sodium chloride" and ISO 3634. 1979 test, "vegetable products sodium chloride Set "of non-equivalent; direct precipitation titration Appendix A and ISO 1841. 1981" Determination "meat and meat products in sodium chloride The degree of consistency of the second law of non-equivalent. This standard replaces GB/T 12457-1990 "Determination of sodium chloride in foods." This standard and GB/T 12457-1990 compared to the main changes are as follows. --- Standard name was changed to. Determination of sodium chloride in food; --- Standard "principles" are the following. Method summary; --- According to the provisions of GB/T 1.1-2000 and GB/T 20001.4-2001 and modify the format of the text. Appendix A of this standard is an informative annex. This standard by the National Standardization Technical Committee of Food Industry and focal points. This standard was drafted. Chinese Food Fermentation Industry Research Institute. The main drafters of this standard. Xu Qing canal, Gongling Di. This standard replaces the standards previously issued as follows. --- GB/T 12457-1990. Determination of sodium chloride in foods1 Scope3.2.9.1 chloride precipitation. Weigh 0.10g ~ 0.15g reference reagent sodium chloride (or by 500 ℃ ~ 600 ℃ ignition to constant weight analysis Pure sodium chloride), accurate to 0.0002g, in 100mL beaker, dissolved in water and transferred to 100mL volumetric flask. Nitric acid was added 5mL Solution (3.2.4), with vigorous shaking while adding 30.00mL (Vp 1) 0.1mol/L standard silver nitrate titration solution (3.2.6), diluted with water to Mark and shake. Placed in a dark place 5min, filtered through a fast filter paper, discard the first filtrate 10mL. 3.2.9.2 excess silver nitrate titration. take the above filtrate 50.00mL in 250mL conical flask, 2mL saturated ammonium ferric sulfate solution ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 12457-2008_English be delivered?Answer: Upon your order, we will start to translate GB/T 12457-2008_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. 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Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.Question 5: Should I purchase the latest version GB/T 12457-2008?Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 12457-2008 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically. |
