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YS/T 519.3-2009: Methods for chemical analysis of arsenic. Part 3: Determination of sulfur content. Barium sulphate gravimetric method
Status: Valid YS/T 519.3: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| YS/T 519.3-2009 | English | 169 |
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Methods for chemical analysis of arsenic. Part 3: Determination of sulfur content. Barium sulphate gravimetric method
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YS/T 519.3-2009
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| YS/T 519.3-2006 | English | 199 |
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Methods for chemical analysis of arsenic The barium sulphate gravimetric method for the determination of sulphur content
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YS/T 519.3-2006
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Basic data | Standard ID | YS/T 519.3-2009 (YS/T519.3-2009) | | Description (Translated English) | Methods for chemical analysis of arsenic. Part 3: Determination of sulfur content. Barium sulphate gravimetric method | | Sector / Industry | Nonferrous Metallurgy Industry Standard (Recommended) | | Classification of Chinese Standard | H17 | | Classification of International Standard | 77.120.99 | | Word Count Estimation | 6,688 | | Date of Issue | 2009-12-04 | | Date of Implementation | 2010-06-01 | | Older Standard (superseded by this standard) | YS/T 519.3-2006 | | Regulation (derived from) | MIIT [2009] No. 66 | | Issuing agency(ies) | Ministry of Industry and Information Technology | | Summary | This standard specifies the amount of sulfur in arsenic determination. This standard applies to the determination of arsenic in sulfur content. Measuring range: 0. 10% to 0. 50%. | YS/T 519.3-2009: Methods for chemical analysis of arsenic. Part 3: Determination of sulfur content. Barium sulphate gravimetric method
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Methods for chemical analysis of arsenic.Part 3. Determination of sulfur content.Barium sulphate gravimetric method
ICS 77.120.99
H17
People's Republic of China Nonferrous Metals Industry Standard
Replacing YS/T 519.3-2006
Methods for chemical analysis of arsenic
Part 3. determination of sulfur content
Barium sulfate gravimetric method
Posted 2009-12-04
2010-06-01 implementation
Ministry of Industry and Information Technology of the People's Republic of China released
Foreword
YS/T 519-2009 "chemical analysis of arsenic" is divided into four parts.
--- Part 1. Determination of arsenic content potassium bromate titration;
--- Part 2. Determination of antimony content - Malachite green spectrophotometry;
--- Part 3. Determination of sulfur content of barium sulfate gravimetric method;
--- Part 4. bismuth, antimony, sulfur content - Inductively coupled plasma atomic emission spectrometry.
This section YS/T 519 Part 3.
The partial replacement of YS/T 519.3-2006 (formerly GB/T 4373.3-1984) "Determination of Arsenic in chemical analysis of barium sulfate gravimetric method
Sulfur content. " Compared with YS/T 519.3-2006, this section has the following changes.
--- Sample size proposed new requirements, the specimen shall be subject to an 80-mesh sieve, diameter of not more than 2mm, to sample all through
0.84mm sieve, and then 0.42mm sieve;
--- Symmetry like proportions were modified by the press on the screen and under the screen ratio of 3 Weigh, modify according to the actual proportion sieve weighed;
--- Blank test sample is weighed with the same amount of arsenic substrate by;
--- Text format has been modified;
--- Complements the precision, quality assurance and control provisions.
The non-ferrous metal part by the National Standardization Technical Committee and centralized.
This section is responsible for drafting unit. Hunan Nonferrous Metals Group Co., Ltd. Shuikoushan.
Participated in the drafting of this section. Zhuzhou Smelter Group Co., Ltd., Hunan Nonferrous Metal Research Institute.
The main drafters of this section. Tan Pingsheng, Zeng Guangming, Baobing Hui, Sun Xiaohui, Liu Bin, Cai Jun, Liu Yan, Pang Wenlin, John Doe red.
This part of the standard replaces the previous editions are.
--- GB/T 4373.3-1984;
--- YS/T 519.3-2006.
Methods for chemical analysis of arsenic
Part 3. determination of sulfur content
Barium sulfate gravimetric method
Warning. Arsenic and its compounds are toxic substances, disposal of contact and need special care.
1 Scope
YS/T 519 This part specifies the determination of arsenic in sulfur content.
This section applies to the determination of arsenic in sulfur content. Measurement range. 0.10 to 0.50%.
2 Method summary
Sample with nitric acid - a saturated solution of potassium chlorate is dissolved, adding hydrochloric acid and evaporated to dryness at approximately 0.2mol/L hydrochloric acid solution of barium chloride was added to make pH
Generate barium sulfate precipitation, filtration, burning, weighing quality barium sulfate obtained sulfur content.
3 Reagents
Analysis process unless otherwise specified, all reagents and analytical use distilled water or water of equivalent purity.
3.1 high-purity arsenic (As≥99.999%).
3.2 potassium chlorate.
3.3 hydrochloride (ρ1.19g/mL).
3.4 nitric acid - a saturated solution of potassium. The potassium chlorate was added nitric acid (ρ1.42g/mL), stirred to dissolve, until there is an excess of solid chlorine
Insoluble potassium date (two weeks available).
3.5 barium chloride solution (100g/L). Use filtered.
3.6 silver nitrate solution (10g/L).
4 Instrument
4.1 Analytical balance (the amount being 0.1mg).
4.2 muffle furnace (temperature can be controlled within a range of 800 ℃ ~ 850 ℃).
5 Sample
The sample was processed into all over the 0.84mm sieve-like crumbs, and then 0.42mm sieve, the sample points sieve, sieve, respectively, into grinding mouth
Bottle, sealed with paraffin. Processing should prevent overheating oxidation.
Step 6 Analysis
6.1 Sample
6.2 blank test
6.3 Determination
6.3.1 The sample (6.1) in 400mL beaker, wetted with a small amount of water, constantly shaking slowly added 25mL of nitric acid - potassium chlorate
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