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GB/T 13025.13-2012: General test method in salt industry -- Determination of arsenic
Status: Valid GB/T 13025.13: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 13025.13-2012 | English | 259 |
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General test method in salt industry -- Determination of arsenic
| Valid |
GB/T 13025.13-2012
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| GB/T 13025.13-1994 | English | 199 |
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General test method in salt industry- Determination of arsenic ion
| Obsolete |
GB/T 13025.13-1994
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PDF similar to GB/T 13025.13-2012
Basic data | Standard ID | GB/T 13025.13-2012 (GB/T13025.13-2012) | | Description (Translated English) | General test method in salt industry -- Determination of arsenic | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | X35 | | Classification of International Standard | 71.060.50 | | Word Count Estimation | 11,147 | | Older Standard (superseded by this standard) | GB/T 13025.13-1994 | | Quoted Standard | GB/T 6682-2008 | | Regulation (derived from) | National Standards Bulletin No. 13 of 2012 | | 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 salt products Determination of arsenic. This section applies to the determination of arsenic salt products. | GB/T 13025.13-2012: General test method in salt industry -- Determination of arsenic---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.
General test method in salt industry. Determination of arsenic
ICS 71.060.50
X35
National Standards of People's Republic of China
Replacing GB/T 13025.13-1994
General test method in salt industry - Determination of arsenic
Issued on. 2012-06-29
2012-12-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
This section of the standard method of series universal testing in salt industry, which is currently divided into the following series of standards section 13 and, if necessary, other test
Standard test method will complement the development of the follow-up work.
--- GB/T 13025.1 General test method in salt industry Determination of particle size;
--- Determination of GB/T 13025.2 General test method in salt industry whiteness;
--- GB/T 13025.3 Determination of Salt Industry General Test Method for Water;
--- Determination of GB/T 13025.4 General test method in salt industry of insoluble matter;
--- GB/T 13025.5 Determination of Salt Industry General test methods of chloride ion;
--- GB/T 13025.6 Determination of common salt industry test methods for calcium and magnesium;
--- GB/T 13025.7 Determination of General test method in salt industry iodine;
--- Determination of GB/T 13025.8 General test method in salt industry sulfate radical;
--- Determination of GB/T 13025.9 common salt industry test methods for lead;
--- Determination of GB/T 13025.10 General test method in salt industry ferrocyanide roots;
--- GB/T 13025.11 General test method in salt industry - Determination of Fluoride;
--- Determination of GB/T 13025.12 General test method in salt industry barium;
--- GB/T 13025.13 Determination of common salt industry test methods for arsenic.
This section GB/T Part of 1,313,025.
This section based on GB/T 1.1-2009 of rules for the preparation.
This Part replaces GB/T 13025.13-1994 "General test method in salt industry - Determination of arsenic ions," and this section
GB/T 13025.13-1994 addition to editorial changes as compared to the outer main changes are as follows.
--- Increased hydride generation atomic fluorescence spectrometry.
This part made by the China Light Industry Federation, the National Salt Industry Standardization Technical Committee centralized.
This section drafted by. National Center for Standardization sea lake salt, mineral salt National Standardization Center.
The main drafters of this section. Zhao Yi, in Xiuling, Ren Qing Dynasty, Sun Jinsong, Liao Xuancheng, Shen Min, Wei Yu.
This section previously issued as follows.
--- GB/T 13025.13-1994.
General test method in salt industry - Determination of arsenic
1 Scope
GB/T 13025 provisions of this part of the determination of arsenic salt products.
This section applies to the determination of arsenic salt products.
2 Normative references
The following documents for the application of this document is essential, dated references, only the dated version suitable for use herein
Member, undated references, the latest edition (including any amendments) applies to this document.
Laboratory use specifications and test methods GB/T 6682-2008 Analysis
3 General Provisions
Unless otherwise indicated in the analysis using only confirm two analytical grade reagents and water GB/T 6682-2008 stipulated.
4 hydride generation atomic absorption spectrophotometry
4.1 Principle
Arsenic and sodium borohydride reaction of arsine in an acidic solution, load electric quartz absorption tube of the argon atoms absorb
193.7nm resonance line, the absorption values \u200b\u200bunder fixed conditions and proportional to the amount of arsenic, compared with standard series quantitation.
4.2 Reagents
4.2.1 hydrochloric acid solution (11)
Measure 250mL of concentrated hydrochloric acid, dissolved in 250mL water.
4.2.2 Potassium Iodide - thiourea solution
Weigh 2.0g of potassium iodide and 0.20g of thiourea in 50mL beaker, add water, 10mL, micro heat to dissolve, when equipped with the new.
4.2.3 a solution of sodium borohydride (15g/L)
Weigh 1.50g of sodium borohydride and 0.30g of sodium hydroxide dissolved in 100mL of water, equipped with the new time.
4.2.4 hydrochloric acid solution (199)
Amount of 5.0mL of concentrated hydrochloric acid was dissolved in 495mL of water. This solution was used as the carrier liquid.
4.2.5 arsenic standard solution (0.1mg/mL)
Accurately weigh 0.1320g by 105 ℃ drying 2h or more and set the dryer to cool to room temperature arsenic trioxide (As2O3) in
100mL beaker, 10mL sodium hydroxide solution (100g/L), to be dissolved, with phenolphthalein as an indicator, with 10% sulfuric acid and then
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