GB/Z 45113-2024Nanotechnologies - Test of volatile components in single-wall carbon nanotube samples - Evolved gas analysis/gas chromatograph-mass spectrometry (English PDF)
纳米技术 单壁碳纳米管挥发性组分测试 逸出气体分析/气相色谱质谱法
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
December 31, 2024
Implementation date
December 31, 2024
Scope
GB/Z 45113-2024 is the English-translated version of 纳米技术 单壁碳纳米管挥发性组分测试 逸出气体分析/气相色谱质谱法.
GB/Z 45113-2024, identical to ISO/TS 11251:2019, describes how to characterize the gases released when single-wall carbon nanotube samples are heated, using evolved gas analysis combined with mass spectrometry (EGA/MS) or with gas chromatography-mass spectrometry (EGA/GCMS).
The guidance covers the measurement principle, the equipment, sample preparation, the measurement steps for both techniques, data processing, measurement uncertainty and the test report, and an informative annex gives worked research examples.
The document notes that heating and any catalyst present can make the evolved gases differ from what the sample actually contains, so results must be read with that in mind.
Nanomaterial laboratories use it to identify volatile components in SWCNT material. It was issued on 31 December 2024.
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Document preview — GB/Z 45113-2024
National Standard of the People's Republic of China
- ICS
- 17.120
- Classification
- L 04
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- Preface
- 1 Scope
- 2 Normative references
- 3 Terms and Definitions
- 4 Principle
- 5 Equipment
- 6 Sample Preparation
- 7 Measurement steps of EGA/MS and EGA/GCMS
- 8 Data Processing
- 9 Measurement uncertainty
- 10 Test Report
- Appendix A (Informative) Research Examples Reference
Foreword
This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1: Structure and drafting rules for standardization documents" Drafting.
This document is equivalent to ISO /T S11251.2019 "Analysis of evolved gases of volatile components in single-walled carbon nanotube samples of nanotechnology" Analysis/Gas Chromatography-Mass Spectrometry Characterization". The document type was adjusted from ISO technical specifications to my country's national standardization guidance technical documents. The following minimal editorial changes were made to this document.
--- To coordinate with the existing standards, the name of the standard is changed to "Nanotechnology Single-walled Carbon Nanotube Volatile Component Test Emitted Gas Analysis" Analysis/Gas Chromatography-Mass Spectrometry.
1 Scope
This document describes a method for characterizing evolved gases from single-walled carbon nanotube samples using evolved gas analysis/gas chromatography-mass spectrometry.
Note: Due to the influence of heating and the possible presence of catalysts, the qualitative and quantitative results of the emitted gas may differ from the gas contained in the sample.
2 Normative references
The contents of the following documents constitute the essential clauses of this document through normative references in this document.
For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to this document.
ISO /T S80004-3 Nanotechnologies Vocabulary-Part 3: Carbon nano-objects Part 3: Carbon nano-objects)
GB/T 30544.3-2015 Nanotechnology Terminology Part 3: Carbon Nanoobjects (ISO /T S80004-3.2010, IDT)
3 Terms and definitions
The terms and definitions defined in ISO /T S80004-3 and the following apply to this document.
The URLs for terminology databases used for standardization maintained by ISO and IEC are as follows.
3.1 Single-walled carbon nanotube; SWCNT A carbon nanotube consisting of a cylindrical carbon monolayer. [Source: GB/T 30544.3-2015, 4.4]
3.2 Evolved gas analysis; EGA
A method for qualitatively and/or quantitatively measuring the functional relationship between the volatile products released from a sample and the temperature under programmed temperature control. [Source: GB/T 30544.6-2016, 4.24, modified]
3.3 evolved gas analysis/mass spectrometry; EGA/MS
A technique that uses mass spectrometry to analyze how the gas components released from a sample change with temperature.
Note: Although multiple evolved gases can be detected simultaneously at a specific temperature, the different components cannot be uniquely identified using mass spectrometry alone.
3.4 evolved gas analysis/gas chromatograph-mass spectrometry; EGA/GCMS
A technique that combines gas chromatography and mass spectrometry to analyze the chemical composition of gases evolving from a sample at different temperatures.
NOTE: The evolved gases are passed through a gas chromatograph (GC) to separate each component for identification in a mass spectrometer (MS) unit.
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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 17 pages — is available in the English PDF.
Referenced standards
Normative references
ISO/T S80004-3
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