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GB/T 30431-2020: Gas chromatography for laboratory
Status: Valid GB/T 30431: Evolution and historical versions
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Gas chromatography for laboratory
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GB/T 30431-2020
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| GB/T 30431-2013 | English | 160 |
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Gas chromatograph for laboratory
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Basic data | Standard ID | GB/T 30431-2020 (GB/T30431-2020) | | Description (Translated English) | Gas chromatography for laboratory | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | N52 | | Classification of International Standard | 17.180.99 | | Word Count Estimation | 22,239 | | Date of Issue | 2020-06-02 | | Date of Implementation | 2020-12-01 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 30431-2020: Gas chromatography for laboratory---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.
Gas chromatography for laboratory
ICS 17.180.99
N52
National Standards of People's Republic of China
Replace GB/T 30431-2013
Laboratory gas chromatograph
2020-06-02 release
2020-12-01 implementation
State Administration of Market Supervision and Administration
Issued by the National Standardization Management Committee
Contents
Foreword Ⅲ
1 Scope 1
2 Normative references 1
3 Acronyms 1
4 Requirement 1
4.1 Normal working conditions of the instrument 1
4.2 Appearance requirements 2
4.3 Safety requirements 2
4.4 Tightness of the pneumatic system 2
4.5 Carrier gas flow stability 2
4.6 Oven temperature control system 2
4.7 Performance requirements of the detector system 2
4.8 Capillary system 3
4.9 Start time 3
4.10 Qualitative repeatability 3
4.11 Quantitative repeatability 3
4.12 Adaptability to high and low temperature environment 3
4.13 Adaptability of power supply voltage 3
4.14 Transportation, transportation and storage 3
4.15 Completeness 4
5 Test method 4
5.1 Test condition 4
5.2 Visual inspection 5
5.3 Safety test 5
5.4 Airtightness of the pneumatic system 5
5.5 Carrier gas flow stability 5
5.6 Oven temperature control system 6
5.7 Detector system 8
5.8 Test for determination of capillary split ratio 13
5.9 Start time 14
5.10 Qualitative repeatability of the instrument 14
5.11 Quantitative repeatability of the instrument 14
5.12 Adaptability of high and low temperature environment 14
5.13 Adaptability of power supply voltage 15
5.14 Transportation, transportation and storage test 15
5.15 Completeness of the instrument 15
6 Inspection rules 15
6.1 Inspection classification 15
6.2 Factory inspection 15
6.3 Type inspection 15
7 Signs, packaging, transportation, storage 17
7.1 Marking of instruments 17
7.2 Packaging 17
7.3 Transportation 17
7.4 Storage 17
Appendix A (Normative Appendix) Carrier Gas Flow Correction 18
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This standard replaces GB/T 30431-2013 "Laboratory Gas Chromatograph".
Compared with GB/T 30431-2013, the main technical changes of this standard are as follows.
---Modified the abbreviation FID for hydrogen flame ionization detector (see Chapter 3, Chapter 3 of the.2013 edition);
--- Modify the normal working conditions of the instrument (see 4.1, 4.1 in.2013 version);
--- Modify the technical requirements and safety test methods of contact current in safety requirements (see 4.3, 5.3, 4.3.1 and 5.3 of.2013 edition);
--- Increasing the technical requirements and methods of carrier gas flow stability (see 4.5, 5.5);
--- Modify the temperature gradient to temperature uniformity, modify the relevant detection methods (see 4.6.4, 5.6.3,.2013 version 4.5.3, 5.5.2);
---Modified the range of capillary split ratio (see 4.8, 5.8.3, 4.7, 5.7.1.2 in.2013 edition);
--- Deleted the recorder [see 4.12b.2013, 5.6];
--- Increased the technical requirements and methods of high and low temperature environment adaptability and power supply voltage adaptability (see 4.12, 4.13, 5.12, 5.13);
--- Deleted the collision test during the transportation and storage of the instrument (see 4.11 and 5.11 of the.2013 edition);
--- Modified the content of the complete set of the instrument (see 4.15, 4.12 of the.2013 edition);
--- Added illustration of the reading method of baseline noise and baseline drift (see Figure 5.7.2.1 Figure 2 and Figure 3);
---Modified the ECD and NPD test reference conditions and added test reference conditions for different samples TCD and FID (see
5.7.1 Table 2,.2013 version 5.6.1 Table 2);
--- Increased TCD detection limit technical indicators and test methods (see Table 4.7, 5.7.2.2);
--- Increased TCD linear range of the sample benzene-toluene solution (or n-hexadecane-isooctane solution) (see 5.7);
--- Modified the test conditions and methods of the linear range (see 5.7, 5.6 of the.2013 edition);
--- Modified the FPD (sulfur) detection limit formula [see 5.7.5.2 formula (11),.2013 version 5.6.5.1 formula (8)];
--- Added measurement performance requirements for test equipment and tools (see 5.1.2,.2013 version 5.1.2);
--- Modified the test method of the start-up time (see 5.9, 5.8 of the.2013 edition);
--- Increased the number of qualitative and quantitative repeatability measurements (see 5.10, 5.11,.2013 version of 5.9, 5.10);
---Modified the instrument inspection item table (see Table 3,.2013 version of Table 3);
--- Modified Appendix A (see Appendix A, Appendix A of the.2013 edition).
This standard was proposed by the China Machinery Industry Federation.
This standard is under the jurisdiction of the National Industrial Process Measurement Control and Automation Standardization Technical Committee (SAC/TC124).
This standard was drafted by. Beijing Institute of Metrology and Testing Science, Beijing Beifen Rayleigh Analytical Instruments (Group) Co., Ltd., Zhejiang
Fuli Analytical Instrument Co., Ltd., Shanghai Institute of Measurement and Testing Technology, Shanghai Yidian Analytical Instrument Co., Ltd., Agilent Technologies
State Co., Ltd., Shanghai Tianmei Scientific Instrument Co., Ltd., Shenzhen Maisduff Technology Co., Ltd., Chongqing Chuanyi Analytical Instrument Co., Ltd.,
Shanghai Tongwei Analytical Technology Co., Ltd., Shandong Lunan Ruihong Chemical Instrument Co., Ltd., China Institute of Metrology, Shanghai Shunyu Hengping Branch
Science Instrument Co., Ltd.
The main drafters of this standard. Wu Hong, Zhou Jiacai, Guo Weiqiang, Zhang Min, Li Zheng, Nashun, Ding Sujun, Zheng Bo, Meng Qingxiang, Li Jing, Cheng Jinxiang,
Tao Hong and Li Jun.
The previous versions of the standard replaced by this standard are as follows.
---GB/T 30431-2013.
Laboratory gas chromatograph
1 Scope
This standard specifies the requirements, test methods, inspection rules and signs, packaging, transportation and storage of laboratory gas chromatographs.
This standard applies to laboratory gas chromatographs.
2 Normative references
The following documents are essential for the application of this document. For dated reference documents, only the dated version applies to this article
Pieces. For the cited documents without date, the latest version (including all amendments) applies to this document.
GB/T 191-2008 Graphic symbol for packaging, storage and transportation
GB/T 2829-2002 Sampling procedures and tables for periodic inspection counting (applicable to the inspection of process stability)
GB/T 11606-2007 Environmental test method for analytical instruments
GB/T 13384-2008 General technical requirements for packaging of electromechanical products
GB/T 30430 Standard chromatographic column for gas chromatograph test
GB/T 34065-2017 Safety requirements for analytical instruments
3 Acronyms
The following abbreviations apply to this document.
TCD. Thermal Conductivity Detector (ThermalConductivityDetector)
FID. Hydrogen Flame Ionization Detector (FlameIonizationDetector)
ECD. Electron Capture Detector (ElectronCaptureDetector)
FPD. Flame Photometric Detector (FlamePhotometricDetector)
NPD. Nitrogen Phosphorous Detector
4 requirements
4.1 Normal working conditions of the instrument
The instrument should work normally under the following conditions.
a) Ambient temperature. 5℃~35℃;
b) Relative humidity. 20%~80%;
c) There is no strong electromagnetic field interference, no corrosive gas and no strong vibration;
d) Power supply. AC voltage 220V±22V, frequency 50Hz±0.5Hz;
e) Grounding requirements. reliable grounding of the instrument (grounding resistance ≤4Ω);
f) Good ventilation, no strong convection.
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