GB/T 9695.29-2008 English PDFUS$169.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 9695.29-2008: Meat and meat products -- Determination of vitamin B2 content Status: Valid GB/T 9695.29: Historical versions
Basic dataStandard ID: GB/T 9695.29-2008 (GB/T9695.29-2008)Description (Translated English): Meat and meat products -- Determination of vitamin B2 content Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: X04 Classification of International Standard: 67.040 Word Count Estimation: 7,74 Date of Issue: 2008-06-25 Date of Implementation: 2009-01-01 Older Standard (superseded by this standard): GB/T 9695.29-1991 Quoted Standard: GB/T 6682-1992 Regulation (derived from): National Standard Approval Announcement 2008 No.10 (Total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 determination of meat vitamin C (ascorbic acid) content. This section applies to the determination of vitamin C content in meat products. The detection limit of this section: 2mg/kg. GB/T 9695.29-2008: Meat and meat products -- Determination of vitamin B2 content---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.Meat and meat products. Determination of vitamin B2 content ICS 67.040 X04 National Standards of People's Republic of China Replacing GB/T 9695.29-1991 Determination of vitamin C content of meat products 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 ForewordGB/T 9695 consists of the following components. --- GB/T 9695.1 "Meat and meat products - Determination of free fat content"; --- GB/T 9695.2 "Meat and meat products - Determination of fatty acid"; --- GB/T 9695.3 "Meat and meat products - Determination of iron content"; --- GB/T 9695.4 "Meat and meat products - Determination of total phosphorus content"; --- GB/T 9695.5 "Meat and meat pH measurement"; --- GB/T 9695.6 "meat Carmine colorant determination"; --- GB/T 9695.7 "Meat and meat products - Determination of total fat content"; --- GB/T 9695.8 "Meat and meat products - Determination of chloride content"; --- GB/T 9695.9 "Meat and meat products polyphosphate determination"; --- GB/T 9695.10 "meat and meat products BHC and DDT residues determination"; --- GB/T 9695.11 "Meat and meat products - Determination of nitrogen content"; --- GB/T 9695.13 "Meat and meat products - Determination of calcium content"; --- GB/T 9695.14 "meat starch content determination"; --- GB/T 9695.15 "Meat and meat products - Determination of moisture content"; --- GB/T 9695.17 "Meat and meat products - Determination of glucono-lactone content of -δ-"; --- GB/T 9695.18 "Meat and meat products - Determination of ash"; --- GB/T 9695.19 "Meat and meat sampling method"; --- GB/T 9695.20 "Meat and meat products - Determination of zinc"; --- GB/T 9695.21 "Meat and meat products - Determination of magnesium content"; --- GB/T 9695.22 "Meat and meat products - Determination of copper content"; --- GB/T 9695.23 "Meat and meat products L (-) - hydroxyproline determination"; --- GB/T 9695.24 "Meat and meat cholesterol content determination"; --- GB/T 9695.25 "Meat and meat products - Determination of vitamin PP"; --- GB/T 9695.26 "Meat and meat products - Determination of vitamin A content"; --- GB/T 9695.27 "Meat and meat products - Determination of vitamin B1"; --- GB/T 9695.28 "Meat and meat products - Determination of vitamin B2"; --- GB/T 9695.29 "Meat vitamin C content determination"; --- GB/T 9695.30 "Meat and meat products - Determination of vitamin E content"; --- GB/T 9695.31 "Meat total sugar content determination." This section GB/T Part of 299,695. This Part replaces GB/T 9695.29-1991 "Determination of vitamin C content of meat." This section compared with the GB/T 9695.29-1991 main changes are as follows. --- According to GB/T 1.1-2000 "Standardization Guide Part 1. Standard structure and writing rules" and GB/T 20001.4-2001 "Rules for drafting standards - Part 4. Chemical analysis method" has been restructured and text modify; --- Increasing the normative references; --- Increasing the detection limit; --- Quantified using the standard curve method instead of a single point of law; the formula accordingly changes; --- With Chapter 10, "precision" and its contents instead of GB/T 9695.29-1991 in Chapter 9, "allows poor" and its contents; --- Added "Test Report" chapter. This part of the National Technical Committee of Standardization Technical Committee eggs and meat products food industry and focal points. This section drafted by. China Chamber of Commerce Business Standard Centre, the National Food Quality Supervision and Inspection Center Processing (Guangzhou), Guangzhou Product quality supervision and inspection. The main drafters of this section. Yu-luan, Tsai Hung, Guoxin Dong, Luo Haiying, Xian Yanping, Zhu peach jade. This part of the standard replaces the previous editions are. --- GB/T 9695.29-1991. Determination of vitamin C content of meat products1 ScopeThis section GB/T 9695 specifies the method for determination of meat in vitamin C (ascorbic acid) content. This section applies to the determination of vitamin C content in meat products. The detection limit of this section. 2mg/kg.2 Normative referencesThe following documents contain provisions which, through reference to GB/T 9695 to the present, constitute provisions of this section. For dated reference documents Member, all subsequent amendments (not including errata content) or revisions do not apply to this section, however, encouraged to reach under this section Parties to research agreement to use the latest versions of these documents. For undated reference documents, the latest versions apply to this section. Laboratory use specifications and test methods (. 1987 neq ISO 3696) GB/T 6682-1992 Analysis Principle 3 After the sample vitamin C was extracted with meta-phosphoric acid, by oxidation of 2,6-dichloro-indophenol dehydrogenation of vitamin C, is reacted with o-phenylenediamine, generate Quinoline port has a purple and blue fluorescent quinoxaline derivatives. In the standard curve excitation wavelength of 350nm, emission wavelength of 430nm at the determination of the fluorescence intensity, Statutory amount. Vitamin C and the dehydrogenation of boric acid may not react to form complexes with o-phenylenediamine, in order to exclude the interference of impurities generated in the sample fluorescence.4 ReagentsUnless otherwise specified, the reagents were of analytical grade. 4.1 Water Third grade water GB/T 6682-1992 requirements. Weigh 50g metaphosphoric acid, dissolved in water and diluted to 1L. Weigh 50g of sodium acetate, dissolved in water and dilute to 100mL. 4.4 boric acid - sodium acetate solution Weigh 3g boric acid, dissolved and diluted to 100mL with sodium acetate solution (4.3). Ethanol 4.5 [1 + 1 (volume ratio)] Measure 50mL of ethanol, 50mL water, and mix. Weigh 3g thiourea, dissolved and diluted to 100mL with ethanol solution (4.5). Pro preparation before use. Weigh 20mg of o-phenylenediamine hydrochloride, dissolved in water and diluted to 100mL. Pro preparation before use. Weigh 0.2g2,6- dichloro indophenol, dissolved in water and diluted to 100mL. Weigh ascorbic acid 50mg (accurate to 0.1mg), dissolve with metaphosphoric acid solution (4.2) and set the volume to 50mL brown volumetric flask. Pro preparation before use. ...... |
