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GB/T 10512-2008 English PDF

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GB/T 10512-2008: Determination of phosphorus content for nitrophosphate -- Quinoline phosphomolybdate gravimetric method
Status: Valid

GB/T 10512: Evolution and historical versions

Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
GB/T 10512-2008English139 Add to Cart 3 days [Need to translate] Determination of phosphorus content for nitrophosphate -- Quinoline phosphomolybdate gravimetric method Valid GB/T 10512-2008
GB/T 10512-1989English199 Add to Cart 2 days [Need to translate] The determination of phosphorus content for nitrophosphate--Quinoline phosphomolybdate gravimetric method Obsolete GB/T 10512-1989

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Basic data

Standard ID GB/T 10512-2008 (GB/T10512-2008)
Description (Translated English) Determination of phosphorus content for nitrophosphate -- Quinoline phosphomolybdate gravimetric method
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard G20
Classification of International Standard 65.080
Word Count Estimation 6,644
Date of Issue 2008-06-17
Date of Implementation 2008-09-01
Older Standard (superseded by this standard) GB/T 10512-1989
Quoted Standard GB/T 10511-2008; HG/T 2843
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 nitrate fertilizer with quinoline phosphomolybdate gravimetric method, Phosphorus Potassium nitrate phosphorus content. This standard applies to all kinds of craft production nitrate fertilizer, determination of water-soluble phosphorus Phosphorus Potassium nitrate and phosphorus content.

GB/T 10512-2008: Determination of phosphorus content for nitrophosphate -- Quinoline phosphomolybdate gravimetric method


---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 phosphorus content for nitrophosphate. Quinoline phosphomolybdate gravimetric method ICS 65.080 G20 National Standards of People's Republic of China Replacing GB/T 10512-1989 Determination of phosphorus content for nitrophosphate Quinoline phosphomolybdate gravimetric method Posted 2008-06-17 2008-09-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

This standard is one nitrate fertilizer, P and K series of standard test methods for nitrate, which are listed below national standards. --- GB/T 10511 "After distillation of total nitrogen content for nitrophosphate titration method"; --- GB/T 10512 "nitrate fertilizer phosphorus content - Quinoline phosphomolybdate gravimetric method"; --- GB/T 10513 "nitrophosphate determination of water content Karl Fischer method"; --- GB/T 10514 "nitrophosphate determination of water content - Oven method"; --- GB/T 10515 "Nitrophosphates particle size determination"; --- GB/T 10516 "nitrate fertilizer particles have an average crush strength of determination." This standard replaces GB/T 10512-1989 "nitrate fertilizer phosphorus content - Quinoline phosphomolybdate gravimetric method." This standard and GB/T 10512-1989 main differences are. --- Reagent solution, such as a standard titration solution preparation and calibration methods are the implementation of HG/T 2843 standards; --- The phosphorus extractants neutral ammonium citrate into 37.5g/disodium edetate solution of L; --- A chapter in the reagents and materials increased content security warning. The standard proposed by China Petroleum and Chemical Industry Association. This standard by the National Standardization Technical Committee under the jurisdiction of fertilizer and soil conditioner and is responsible for interpretation. This standard was drafted. Tianji Coal Chemical Industry Group Co., Ltd., National Fertilizer Quality Supervision and Inspection Center (Shanghai). The main drafters. Zhang Jiahong, Wang Yin, Li Yongping, Guo Lian Hong, Yang. This standard was first published in 1989. Determination of phosphorus content for nitrophosphate Quinoline phosphomolybdate gravimetric method

1 Scope

This standard specifies the determination of quinoline phosphomolybdate gravimetric method nitrate fertilizer, the phosphorus content of phosphorus and potassium nitrate. This standard applies to all kinds of technology, the nitrate fertilizer, water solubility of phosphorus and phosphorus content of phosphorus and potassium nitrate.

2 Normative references

The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard. GB/T 10511-2008 nitrophosphate total nitrogen content after distillation titration HG/T 2843 fertilizer products chemical analysis commonly used in standard titration solution, standard solution, reagent solution and indicator solution Principle 3 Water and disodium EDTA solution was extracted nitrate fertilizer, water-soluble phosphorus Phosphorus Potassium nitrate and phosphorus, phosphate extracts CKS Ion in acidic medium to form a yellow phosphomolybdic acid reagent and Quimociac quinoline precipitation, determination of phosphorus using quinoline phosphomolybdate gravimetric method.

4 Reagents and materials

The following part-corrosive reagents and solutions, the operator should be careful! If splashed on skin, immediately wash with water, severe cases should Immediate treatment. The standard reagent preparation, and water solution used in the method of preparation and specifications are not specified, shall comply with HG/T 2843 stipulated. 4.1 Disodium ethylenediaminetetraacetate (EDTA) solution, 37.5g/L; Weigh 37.5gEDTA in 1000mL beaker, add a small amount of water dissolved, diluted with water to 1000mL, and mix. 4.2 Quimociac reagent; Nitric acid solution was 4.3, 1 + 1.

5 Instruments

5.1 usually laboratory instruments; 5.2 Ovens can be controlled (180 ± 2) ℃; 5.3 Glass filter crucible, No. 4, volume 30mL; 5.4 constant temperature water bath oscillator, to control the temperature (60 ± 2) ℃ or roundabout reciprocating oscillator oscillator. Step 6 Analysis Do two parallel determination of sample. 6.1 Sample Weighing Weigh phosphorus pentoxide containing 100mg ~ 180mg samples (sample preparation see GB/T 10511-2008 6.1) to the nearest 0.0002g.

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