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Test method for instrumental determination of carbon, hydrogen, nitrogen and sulfur in organic chemicals
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Basic data
| Standard ID | SN/T 3005-2011 (SN/T3005-2011) |
| Description (Translated English) | Test method for instrumental determination of carbon, hydrogen, nitrogen and sulfur in organic chemicals |
| Sector / Industry | Commodity Inspection Standard (Recommended) |
| Classification of Chinese Standard | G04 |
| Classification of International Standard | 71.080 |
| Word Count Estimation | 6,622 |
| Date of Issue | 2011-09-09 |
| Date of Implementation | 2012-04-01 |
| Quoted Standard | GB/T 6678 |
| Regulation (derived from) | State inspection recognized (2011) 492; industry standard filing Notice 2012 No. 4 (No. 148 overall) |
| Issuing agency(ies) | General Administration of Customs |
| Summary | This standard specifies the use of elemental analyzer organic chemicals carbon, hydrogen, nitrogen, sulfur content approach. This standard applies to organic chemicals in the total carbon, total hydrogen, nitrogen, total sulfur content, does not apply to the determination of volatile samples. |
SN/T 3005-2011: Test method for instrumental determination of carbon, hydrogen, nitrogen and sulfur in organic chemicals
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Test method for instrumental determination of carbon, hydrogen, nitrogen and sulfur in organic chemicals
People's Republic of China Entry-Exit Inspection and Quarantine Standards
Organic chemical elements carbon, hydrogen, nitrogen, sulfur content
Analyzer method
Testmethodforinstrumentaldeterminationofcarbon, hydrogen, nitrogenand
Issued on. 2011-09-09
2012-04-01 implementation
People's Republic of China
The State Administration of Quality Supervision, Inspection and Quarantine released
Foreword
This standard was drafted in accordance with GB/T 1.1-2009 given rules.
This standard is proposed and managed by the National Certification and Accreditation Administration Committee.
This standard was drafted. People's Republic of China Zhejiang Exit Inspection and Quarantine, Guangdong Entry-Exit Inspection and Quarantine of People's Republic of China
Bureau, People's Republic of China Hubei Entry-Exit Inspection and Quarantine Tianjin People's Republic of China.
The main drafters of this standard. Determination Of Zheng Jianguo, Tu Bin card, Ho, Benny Lau from Cui Hairong.
This standard is the first release of the entry-exit inspection and quarantine industry standards.
Organic chemical elements carbon, hydrogen, nitrogen, sulfur content
Analyzer method
Warning --- personnel should use this standard regular laboratory work experience. This standard does not point out all possible security asked
question. Users have the responsibility to take appropriate safety and health practices and to ensure compliance with the conditions relevant national regulations.
1 Scope
This standard specifies the use of organic chemicals elemental analyzer of carbon, hydrogen, nitrogen, sulfur content approach.
This standard applies to organic chemicals in total carbon, hydrogen determination of total, total nitrogen, total sulfur content not suitable for the determination of volatile samples.
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 6678 General chemical sampling
3 Method summary
Sample at high temperature combustion oxygen conditions to produce carbon dioxide, water vapor, sulfur oxides, nitrogen oxides and nitrogen. These mixed
Gas helium as the carrier gas, hot brass by removing remaining oxygen, the reduction of nitrogen oxides to nitrogen, sulfur trioxide reduced to sulfur dioxide. then
These mixed gas adsorption column adsorption solution by heating or separated N2, CO2, H2O and SO2 absorption by a suitable method, and through appropriate
When the detector detects and their contents were calculated.
4 instrument and reagent material
4.1 Instrument
4.1.1 Analytical Balance. Accuracy 0.001mg.
4.1.2 elemental analyzer. one can simultaneously analyze instrumentation carbon, hydrogen, nitrogen and sulfur, and oxygen from the injection device, the furnace and the reaction tube,
Mixed gas separation means, the detector has four major components. Elements and test purposes can be divided into CHNS/CNS/S according to the sulfur contained in the sample
Mode and CHN/CN/N contains no sulfur two models for testing.
4.2 reagent material
Unless otherwise indicated in the analysis using only recognized as a pure chemical and higher purity reagents.
4.2.1 Standard materials. reference materials to calibrate the instrument, Table 1 lists most of the organic compounds used to calibrate the instrument, but also users
Other suitable organic compounds can be used instead.
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