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SN/T 1031.1-2012: Chemical analysis of crude antimony trioxide for export. Part 1: Determination of mercury content
Status: Valid SN/T 1031.1: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| SN/T 1031.1-2012 | English | 159 |
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Chemical analysis of crude antimony trioxide for export. Part 1: Determination of mercury content
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SN/T 1031.1-2012
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| SN/T 1031.1-2001 | English | 199 |
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Determination of export crude antimony oxide chemical analysis method. Mercury content
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SN/T 1031.1-2001
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PDF similar to SN/T 1031.1-2012
Basic data | Standard ID | SN/T 1031.1-2012 (SN/T1031.1-2012) | | Description (Translated English) | Chemical analysis of crude antimony trioxide for export. Part 1: Determination of mercury content | | Sector / Industry | Commodity Inspection Standard (Recommended) | | Classification of Chinese Standard | H13 | | Classification of International Standard | 77.040.30 | | Word Count Estimation | 6,616 | | Older Standard (superseded by this standard) | SN/T 1031.1-2001 | | Quoted Standard | GB/T 6379.2; GB/T 6682 | | Regulation (derived from) | National Quality Inspection (2012) 237; industry standard filing Notice 2012 No. 9 (Total No. 153); | | Issuing agency(ies) | General Administration of Customs | | Summary | This standard specifies the use of cold vapor atomic absorption spectrophotometry crude exports of mercury antimony oxide method. This standard applies to exports of crude antimony oxide mercury content. Measuring range: 0. 00005% -0. 01 % (mass fraction) | SN/T 1031.1-2012: Chemical analysis of crude antimony trioxide for export. Part 1: Determination of mercury content
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Chemical analysis of crude antimony trioxide for export.Part 1. Determination of mercury content
People's Republic of China Entry-Exit Inspection and Quarantine Standards
Instead of the SN/T 1031.1-2001
Exports of crude antimony oxide chemical analysis methods
Determination of mercury content. Part 1
Part 1. Determinationofmercurycontent
Issued on. 2012-05-07
2012-11-16 implementation
People's Republic of China
The State Administration of Quality Supervision, Inspection and Quarantine released
Foreword
SN/T 1031 "chemical analysis of antimony oxide crude exports" is divided into seven parts.
--- Part 1. Determination of mercury content;
--- Part 2. Determination of total antimony content;
--- Part 3. Determination of antimony content;
--- Part 4. Determination of fluorine content;
--- Part 5. Determination of selenium content;
--- Part 6. Determination of lead and iron content;
--- Part 7. Determination of arsenic content.
This section SN/T 1031 Part 1.
This section drafted in accordance with GB/T 1.1-2009 given rules.
The partial replacement of SN/T 1031.1-2001 "Determination of export of crude antimony oxide chemical analysis of mercury content."
This section compared with the SN/T 1031.1-2001, the main technical changes are as follows.
--- Add a description of the preamble;
--- Increased Chapter 2, "Normative references";
--- Revised Chapter 5, "microwave digestion" of the name and technical specifications (see 5.2), and Chapter 7 to use the power of microwave digestion
Rate revised to 320W (see 5.2);
--- Clear the Chapter 7 sample weight (see 7.1) and dispensing volume (Table 1);
--- Increased Chapter 8 precision instructions.
This section proposed and managed by the National Certification and Accreditation Administration Committee.
This section was drafted by. People's Republic of China Guangdong CIQ.
The main drafters of this section. Peng-speed standard, Zheng Jianguo, Dicui Ping, Zhong Zhiguang, Luzhen Guo Zhong Pei Yu, Huang Wenxian, Luo Yumei, He Yingxian,
Li Jinxing.
This part of the standard replaces the previous editions are.
--- SN/T 1031.1-2001.
Exports of crude antimony oxide chemical analysis methods
Determination of mercury content. Part 1
Warning. Use SN/T 1031-2012 this part of regular staff should have practical experience in laboratory work. This section does not indicate the
There are potential security issues. Users have the responsibility to take appropriate safety and health practices and to ensure compliance with the conditions relevant national regulations.
1 Scope
This section SN/T 1031 specifies the use of cold vapor atomic absorption spectrophotometric method to determine the export of crude antimony oxide mercury content.
This section applies to the determination of export crude antimony oxide mercury content. Measurement range. 0.00005% to 0.01% (mass fraction).
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein
Member. For undated references, the latest edition (including any amendments) applies to this document.
GB/T 6379.2 measurement methods and results of Accuracy (trueness and precision) - Part 2. Determine the standard measurement method to repeat
Of the basic methods of reproduction
Laboratory use specifications and test methods GB/T 6682 Analysis
3 Method summary
Samples with hydrochloric acid, tartaric acid and potassium chloride by microwave digestion, the absorbance of the resulting solution was measured by mercury mercury meter in wavelength at 253.7nm
degree. On the amount of mercury Richard curve to calculate the mercury content of the sample.
4 Reagents
Unless otherwise noted, all reagents were of analytical grade and water for the three water GB/T 6682 regulations.
4.1 high-purity tin. purity ≥99.99%.
4.2 mercuric chloride. purity ≥99.9%.
4.3 hydrochloric acid (ρ = 1.19g/mL).
4.4 nitric acid (ρ = 1.42g/mL).
4.5 potassium chloride solution (20g/L).
4.6 tartaric acid solution (300g/L).
4.7 tartaric acid solution (40g/L).
4.8 potassium permanganate solution (50g/L).
4.9 aqua regia dilutions. Pipette 2mL nitric acid (4.4), 6mL hydrochloric acid (4.3) and 90mL water, and mix.
4.10 stannous chloride solution (100g/L). Weigh 10g of stannous chloride in a beaker, was added 18mL of hydrochloric acid (4.3), dissolved by heating. cold
It was diluted to 100mL with distilled water and mix. If precipitation is filtered, add a few grains of high purity tin (4.1) and transferred to a brown bottle to save.
4.11 Mercury standard stock solution (1.0mg/mL). Weigh 0.1354g sulfated drier mercuric chloride (4.2) in 100mL burn
Cup, add 6mL hydrochloric acid (4.3) and 2mL nitric acid (4.4), placed on a steam bath to dissolve. Cooled and transferred to 100mL volumetric flask
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