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SN/T 2413-2010: Determination of total carbon and sulfur contents of silicon metal for import and export. Infrared absorption spectromentry
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Determination of total carbon and sulfur contents of silicon metal for import and export. Infrared absorption spectromentry
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SN/T 2413-2010
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Basic data | Standard ID | SN/T 2413-2010 (SN/T2413-2010) | | Description (Translated English) | Determination of total carbon and sulfur contents of silicon metal for import and export. Infrared absorption spectromentry | | Sector / Industry | Commodity Inspection Standard (Recommended) | | Classification of Chinese Standard | H10 | | Classification of International Standard | 77.040.30 | | Word Count Estimation | 9,941 | | Date of Issue | 2010-01-10 | | Date of Implementation | 2010-07-16 | | Quoted Standard | GB/T 2881; GB/T 4010 | | Regulation (derived from) | National Quality Inspection (2010) No. 13 | | Issuing agency(ies) | General Administration of Customs | | Summary | This standard specifies the import and export of silicon metal frequency combustion infrared absorption spectrometry determination of total carbon and sulfur content approach. This standard applies to imports of silicon metal in the total carbon and sulfur content. Measuring range: C: 0. 010% ~ 0. 50%, S | SN/T 2413-2010: Determination of total carbon and sulfur contents of silicon metal for import and export. Infrared absorption spectromentry
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Determination of total carbon and sulfur contents of silicon metal for import and export.Infrared absorption spectromentry
Exit inspection and quarantine industry standard book People's Republic of China
Import and export of silicon metal in the determination of total carbon and sulfur content
High frequency combustion infrared absorption spectroscopy
Issued on. 2010-01-10
2010-07-16 implementation
People's Republic of China
The State Administration of Quality Supervision, Inspection and Quarantine released
Foreword
The Standard Appendix A and Appendix B is an informative annex.
This standard is proposed and managed by the National Certification and Accreditation Administration Committee.
This standard was drafted. People's Republic of China Guangdong CIQ.
Drafters of this standard. Chen Ping, Zhang Zhenkun, Static, horse Ice.
This standard is the first release of the entry-exit inspection and quarantine industry standards.
Import and export of silicon metal in the determination of total carbon and sulfur content
High frequency combustion infrared absorption spectroscopy
1 Scope
This standard specifies the method of infrared absorption spectrometry of total carbon and sulfur content of the import and export of silicon metal in the high-frequency combustion.
This standard applies to the determination of total import and export of silicon metal in the carbon and sulfur content. Measuring range. C. 0.010% ~ 0.50%; S. 0.002% ~
0.02%.
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 2881 industrial silicon
GB/T 4010 alloy chemical analysis and preparation of samples
3 Method summary
Sample in a high frequency induction furnace combustion heating large stream of oxygen, carbon conversion to carbon dioxide (or carbon monoxide), transformed into sulfur dioxide
Oxygen introduced by the infrared detector measures the room, the detection of carbon dioxide (or carbon monoxide) and sulfur dioxide absorption of specific wavelengths of infrared energy,
Concentration can be absorbed carbon and sulfur and is proportional to the measured total carbon and sulfur content.
4 Reagents
Unless otherwise stated, use only approved analytical reagent and distilled water or equivalent purity.
4.1 Water boil 30min, cooled to room temperature, pass oxygen (4.5) enables blistering 15min, prepared using.
4.2 sodium carbonate (reference material). dried over anhydrous sodium carbonate. Before use in 285 ℃ drying 2h, placed in a desiccator to cool.
4.3 Potassium (excellent pure). Before use to bake at 105 ℃ ~ 110 ℃ to constant weight, placed in a desiccator to cool.
4.4 magnesium perchlorate. particle size 0.7mm ~ 1.2mm.
4.5 Oxygen (99.5%).
4.6 iron flux. carbon content less than 0.001% (mass fraction).
4.7 tungsten tin flux. pure tungsten tin powder 6-4 mixing. Carbon content less than 0.001% (mass fraction).
4.8 Standard stock solution of sodium carbonate (25g/L). Weigh 55.152g sodium carbonate (4.2), was dissolved in 200mL of water, 250mL capacity moved
Volumetric flask, dilute to volume, and mix. This solution 1mL containing 25mg carbon.
4.9 Potassium standard solution. Weigh potassium in Table 2 (4.3), were placed in six 100mL beaker, dissolved in water and transferred to 100mL
Volumetric flask, dilute to volume, and mix.
4.10 silicon metal standard material.
5. Apparatus
5.1 frequency induction infrared carbon and sulfur analyzer. (Sensitivity 0.1 × 10-6).
5.2 micro pipettes. 100μL, the error should be less than 1μL.
5.3 tin capsules. volume about 0.4mL, carbon content less than 0.001% (mass fraction).
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