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GB/T 9695.4-2009: Meat and meat products -- Determination of total phosphorus
Status: Obsolete GB/T 9695.4: Evolution and historical versions
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| GB/T 9695.4-2009 | English | 319 |
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Meat and meat products -- Determination of total phosphorus
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GB/T 9695.4-2009
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| GB/T 9695.4-1988 | English | 199 |
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Meat and meat products--Method for determination of total phosphorus
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GB/T 9695.4-1988
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PDF similar to GB/T 9695.4-2009
Basic data | Standard ID | GB/T 9695.4-2009 (GB/T9695.4-2009) | | Description (Translated English) | Meat and meat products -- Determination of total phosphorus | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | X04 | | Classification of International Standard | 67.040 | | Word Count Estimation | 8,844 | | Date of Issue | 2009-04-08 | | Date of Implementation | 2009-05-01 | | Older Standard (superseded by this standard) | GB/T 9695.4-1988 | | Quoted Standard | GB/T 6682; GB/T 9695.19 | | Adopted Standard | ISO 13730-1996, MOD; ISO 2294-1974, MOD | | Regulation (derived from) | National Standard Approval Announcement 2009 No.3 (Total No.143) | | 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 method of meat and meat products Determination of total phosphorus content. Photometric detection limit of this section: 0. 1mg/kg. | GB/T 9695.4-2009: Meat and meat products -- Determination of total phosphorus---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 total phosphorus
ICS 67.040
X04
National Standards of People's Republic of China
Replacing GB/T 9695.4-1988
Meat and meat products - Determination of total phosphorus content
(ISO 2294. 1974, MeatandMeatProducts-DeterminationofTotalPhosphorus
Content (ReferenceMethod) -FirstEdition, ISO 13730.1996, MeatandMeat
Method-FirstEdition, MOD)
Posted 2009-05-01 2009-04-08 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
GB/T 9695 "Meat and meat products" consists of the following components.
--- Part 1. Meat and meat products - Determination of free fat content;
--- Part 2. Determination of fatty meat and meat products;
--- Part 3. Meat and meat products - Determination of iron content;
--- Part 4. Determination of total phosphorus content of meat and meat products;
--- Part 5. Meat and meat pH measurement;
--- Part 6. Determination of meat Carmine colorant;
--- Part 7. Meat and meat products - Determination of total fat content;
--- Part 8. Meat and meat products - Determination of chloride content;
--- Part 9. Determination of meat and meat products polyphosphate;
--- Part 10. Meat and meat products BHC and DDT residues determination;
--- Part 11. Meat and meat products - Determination of nitrogen;
--- Part 13. Meat and meat products - Determination of calcium content;
--- Part 14. Determination of starch content of meat products;
--- Part 15. Determination of moisture content in meat and meat products;
--- Part 17. Determination of meat and meat products gluconate -δ- lactone content;
--- Part 18. Meat and meat products - Determination of total ash;
--- Part 19. Meat and meat sampling methods;
--- Part 20. Meat and meat products - Determination of zinc;
--- Part 21. Meat and meat products - Determination of magnesium content;
--- Part 22. Meat and meat products - Determination of copper content;
--- Part 23. Meat and meat products - Determination of hydroxyproline content;
--- Part 24. Meat and meat products - Determination of cholesterol;
--- Part 25. Meat and meat products - Determination of vitamin PP;
--- Part 26. Meat and meat products - Determination of vitamin A;
--- Part 27. Meat and meat products - Determination of vitamin B1;
--- Part 28. Meat and meat products - Determination of vitamin B2;
--- Part 29. Determination of vitamin C content of meat products;
--- Part 30. Meat and meat products - Determination of vitamin E;
--- Part 31. Determination of the total sugar content of meat products.
This section GB/T 49695 Part of.
This part of the "Weighing precipitation 3 laws," the use of ISO 2294. 1974 "Meat and meat products - Determination of total phosphorus content (Reference method)."
This part of ISO 2294. major changes compared to 1974 are as follows.
--- Wet digestion nitrate - nitric acid to sulfuric acid digestion - perchloric acid digestion;
--- Dry ashing concentrated nitric acid to hydrochloric acid (1 + 1);
--- Quinoline phosphomolybdate precipitation temperature from 260 ℃ ± 20 ℃ to 180 ℃ ± 20 ℃;
--- Results are expressed as P2O5 by the change as P;
--- Standard structure and text were modified;
--- References of ISO 3100 to GB/T 9695.19, because the sampling method ISO 3100 does not apply to meat and meat products.
This part of the "4 spectrophotometry" modify using ISO 13730.1996 "Meat and meat products - Determination of total phosphorus content spectrophotometer
Law degree. "
This part of ISO 13730.1996 compared to the main changes are as follows.
--- Increased wet digestion;
--- Dry ashing concentrated nitric acid to hydrochloric acid (1 + 1);
--- Results are expressed as P2O5 by the change as P;
--- The formula will change in volume in notation, instead of the original formula with specific numerals;
--- Standard structure and text has been modified.
This Part replaces GB/T 9695.4-1988 "Meat and meat products - Determination of total phosphorus content."
This portion of the GB/T 9695.4-1988 compared to the main changes are as follows.
--- Deletes Appendix A quinoline phosphomolybdate volumetric method;
--- Increased spectrophotometry;
--- The drying temperature gravimetric method of quinoline phosphomolybdate precipitation changed to 180 ℃;
--- 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 methods," the original standards and structural adjustment
Editorial changes.
This part of the National Standardization Technical Committee of poultry meat products and centralized.
This section drafted by. China Meat Research Center, China Chamber of Commerce Business Standard Centre, Xiamen Disease Control and Prevention
System Center, Jiangyin City Product Quality Supervision.
The main drafters of this section. Guo Wenping, Zhao Rong, Luo and East, when Hongxia Wu Lei, Jin Xiaolei Liu Zhenyu.
This part of the standard replaces the previous editions are.
--- GB/T 9695.4-1988.
Meat and meat products - Determination of total phosphorus content
1 Scope
This section GB/T 9695 provisions of meat and meat products Determination of total phosphorus content.
This section spectrophotometric detection limits. 0.1mg/kg.
2 Normative references
The following documents contain provisions which, through reference to GB/T 9596 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 version of the referenced files. For undated reference documents, the latest versions apply to this
section.
GB/T 6682 analytical laboratory use specifications and test methods (GB/T 6682-2008, ISO 3696. 1987, MOD)
GB/T 9695.19 Meat and meat products - Sampling Methods
3 precipitate weighing method
3.1 Principle
The sample was dry ashing or wet digestion to prepare a dilute acid solution at 5% to 10% of the acidity of nitrate, phosphate and sodium molybdate and quinoline
The reaction of quinoline phosphomolybdate precipitate. After washing, at 180 ℃ ± 20 ℃ weighed at drying, the phosphorus content determined.
Reaction is.
H3PO4 + 12Na2MoO4 + 24HNO3 + 3C9H7N
= (C9H7N) 3 H3PO4 · 12MoO3 · H2O ↓ + 24NaNO3 + 11H2O
3.2 Reagents
Unless otherwise noted, reagents were analytical grade, the water should be consistent with GB/T 6682 requirements.
3.2.1 hydrochloric acid.
3.2.2 nitrate.
3.2.3 perchloric acid.
3.2.4 hydrochloric acid solution. HCl + water = 1 + 1.
3.2.5 nitric acid solution. nitric acid = 1 + 1 + water.
3.2.6 acetone.
Sodium molybdate 3.2.7.
3.2.8 citric acid.
3.2.9 quinoline.
3.2.10 Quimociac precipitating agent.
3.2.10.1 70g of sodium molybdate was dissolved in 150mL of water;
3.2.10.2 citric acid 60g was dissolved in 150mL of water, together with nitric acid (3.2.2) 85mL;
3.2.10.3 Under constant stirring, the solution was slowly added to 3.2.10.2 3.2.10.1 solution;
3.2.10.4 35mL in 100mL of water was slowly added nitric acid and quinoline (3.2.2) 5mL;
3.2.10.5 Under constant stirring, the solution was slowly added 3.2.10.3 3.2.10.4 solution, the stand at room temperature after mixing
24h, filtered acetone 280mL, diluted with water to 1000mL, and mix.
3.2.11 mixed acid digestion. nitric acid + perchloric acid = 7 + 1.
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