GB/T 37182-2018Gas analysis—Gas chromatograph with plasma emission detector (English PDF)
气体分析 等离子发射气相色谱法
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
December 28, 2018
Implementation date
November 1, 2019
Scope
GB/T 37182-2018 is the English-translated version of 气体分析 等离子发射气相色谱法.
GB/T 37182-2018 gives a method for determining trace components in gases with a gas chromatograph fitted with a plasma emission detector.
It applies to high purity, industrial and standard gases such as hydrogen, oxygen, nitrogen, carbon monoxide, carbon dioxide, helium, argon and neon, and to hydrocarbons such as alkanes and benzene, over a range of 0.05x10^-6 to 10x10^-6 as volume fraction.
It explains the principle, in which the separated component forms a plasma in a quartz cell and its emitted light is converted into an electrical signal, and describes the instrument and its gas paths.
The content is calculated by comparison with a standard gas. It is used by gas producers and analytical laboratories. The standard was issued on 28 December 2018 and has applied since 1 November 2019.
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Document preview — GB/T 37182-2018
National Standard of the People's Republic of China
- ICS
- 71.040.40
- Classification
- G 86
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- Foreword
- 1 Scope
- 2 Normative references
- 3 Terms and definitions
- 4 Principle
- 5 Instruments
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
1 Scope
This standard specifies a method for the determination of trace components in gases using a gas chromatograph equipped with a plasma emission detector.
This standard applies to high purity gas, industrial gas, standard gas and other gases such as hydrogen, oxygen, nitrogen, carbon monoxide, carbon dioxide, helium, argon, helium, neon and Determination of hydrocarbon components such as alkane and benzene. The measurement range is 0.05 x 10^-6~10 x 10^-6 (volume fraction).
2 Normative references
The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this document. For undated references, the latest edition (including all amendments) applies to this document.
GB/T 3723 General rules for sampling safety of industrial chemical products
GB/T 4842 argon
GB/T 4844 Pure helium, high purity helium and ultra pure helium
GB/T 8979 pure nitrogen, high purity nitrogen and ultra pure nitrogen
GB/T 30431 laboratory gas chromatograph
JJG700 gas chromatograph verification procedure
JJF1059.1 Measurement Uncertainty Evaluation and Representation
3 Terms and definitions
The following terms and definitions apply to this document.
3.1 Plasma emission detector
A device that converts an optical signal of a characteristic spectrum generated after a gas component to be tested forms a plasma into an electrical signal.
4 Principle
The gas component separated by the carrier gas through the column forms a plasma in the quartz cell by the action of an electromagnetic field, and the plasma of the gas component to be tested The light emitted by the body is filtered and selected to convert the optical signal into an electrical signal by photoelectric conversion, and the content of the gas component to be tested is stronger than the electrical signal.
The degree has a proportional relationship, and the content of the gas component to be tested is calculated by comparing the standard sample signal with the signal of the component to be tested.
5 Instruments
5.1 Overview
The basic composition and requirements of the instrument shall comply with the provisions of GB/T 30431.
The detection limit of the instrument should meet the requirements of the inspection task.
5.2 Common gas path of the instrument
5.2.1 Basic process
The basic procedure is mainly used for the determination of components in helium, see Figure A.1 in Appendix A.
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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
Referenced standards
Normative references
- GB/T 3723Sampling of chemical products for industrial use. Safety in sampling
- GB/T 4842Pure argon, high-purity argon and ultra-high-purity argon
- GB/T 4844Pure helium, high purity helium and ultra purity helium
- GB/T 8979Pure nitrogen, high purity nitrogen and ultra pure nitrogen
- GB/T 30431Gas chromatography for laboratory
- JJG 700Verification Regulation of Gas Chromatograph
Cited by
- GB/T 16942-2025Electronic gas — Bulk gas
- GB/T 28125.1-2025Gas analysis — Determination of the contents of hazardous materials in air separation process — Part 1: Determination of contents of methane, acetylene, carbon dioxide and hydrocarbons
- GB/T 33102-2025Methane
- GB/T 3634.2-2025Hydrogen - Part 2: Pure hydrogen, high purity hydrogen and ultra purity hydrogen
- GB/T 41328-2022Biogas-based natural gas
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Related Standards
GB/T 30431-2013 — Gas chromatograph for laboratory
GB/T 30431-2020 — Gas chromatography for laboratory
GB/T 3723-1999 — Sampling of chemical products for industrial use. Safety in sampling
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