GB/T 28124: Evolution and historical versions
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| GB/T 28124-2025 | English | RFQ |
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Gas analysis - Determination of the trace contents of hydrogen, oxygen, methane and carbon monoxide in inert gases - Gas chromatography with zirconia detector
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GB/T 28124-2025
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| GB/T 28124-2011 | English | 139 |
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Determination of trace hydrogen, oxygen, methane and carbon monoxide in the inert gases -- Gas chromatographic method
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GB/T 28124-2011
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Basic data | Standard ID | GB/T 28124-2025 (GB/T28124-2025) | | Description (Translated English) | Gas analysis - Determination of the trace contents of hydrogen, oxygen, methane and carbon monoxide in inert gases - Gas chromatography with zirconia detector | | Sector / Industry | National Standard (Recommended) | | Date of Implementation | 2026-03-01 | | Older Standard (superseded by this standard) | GB/T 28124-2011 | GB/T 28124-2011: Determination of trace hydrogen, oxygen, methane and carbon monoxide in the inert gases -- Gas chromatographic method
---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.
Determination of trace hydrogen, oxygen, methane and carbon monoxide in the inert gases. Gas chromatographic method
ICS 71.040.40
G86
National Standards of People's Republic of China
Inert gas trace hydrogen, oxygen, methane, carbon monoxide
Gas Chromatography
Determinationoftracehydrogen, oxygen, methaneandcarbonmonoxide
Issued on. 2011-12-30
2012-10-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
This standard was drafted in accordance with GB/T 1.1-2009 given rules.
The standard proposed by China Petroleum and Chemical Industry Association.
This standard by the National Standardization Technical Committee on Gas (SAC/TC206) centralized.
This standard was drafted. Southwest Chemical Industry Research and Design Institute, Shanghai, love Chromatography Technology Co., Ltd., Fuzhou, product quality inspection.
The main drafters of this standard. He Daoshan, Fang Hua, Lijian Hao, Chen melting, Chen Yali.
Inert gas trace hydrogen, oxygen, methane, carbon monoxide
Gas Chromatography
1 Scope
This standard specifies the trace of hydrogen, oxygen, methane, carbon monoxide measurement method inert gas measured by Zirconia detector gas chromatography.
This standard applies to nitrogen, argon, helium, neon, krypton, xenon and other trace inert gases hydrogen, oxygen, methane, and carbon monoxide content
Determination. Measuring range. (0 ~ 20) × 10-6 (volume 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 3723 Sampling of chemical products for industrial use General Safety
GB/T 6680 General rules for sampling liquid chemical products
GB/T 6681 General rules for sampling gaseous chemical products
3 Method summary
Using zirconia solid battery as a GC detector. Sample gas component being tested hydrogen, oxygen, methane, carbon monoxide through the column
After separation into the detector, resulting in a corresponding response signal chromatography, external standard.
4 equipment, materials
4.1 Instrument
Gas chromatography with zirconia detector instrument. Detection limit. 0.05 × 10-6 (volume fraction).
4.2 The carrier gas
Using an inert gas as a carrier gas. Carrier gas content measured component should be tested component content lower by about one order of magnitude than the sample gas, when
When that does not meet the requirements, you should use the carrier gas purifier.
Typically, the choice of carrier gas and sample the same main ingredient, can also choose other gas does not interfere with the determination of the carrier gas, such as. analysis of nitrogen, krypton,
When xenon, optionally nitrogen or argon as a carrier gas.
4.3 Column
Column length 3m, inner diameter 2mm, stainless steel column, the contents of 0.25mm ~ 0.40mm 13X molecular sieves.
Allows the use of other equivalent column.
4.4 standard sample
Standard dilution air samples to be tested with the same kind of main components, each component content (volume fraction) sample to be tested are similar, usually
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