ISO/TS 11308:2020

Nanotechnologies — Characterization of carbon nanotube samples using thermogravimetric analysis

This document gives guidelines for the characterization of carbon nanotube (CNT)-containing samples by thermogravimetric analysis (TGA), performed in either an inert or oxidizing environment. Guidance is provided on the purity assessment of the CNT samples through a quantitative measure of the types of carbon species present as well as the non-carbon impurities (e.g. metal catalyst particles) within the material. In addition, this technique provides a qualitative assessment of the thermal stability and homogeneity of the CNT-containing sample. Additional characterization techniques are required to confirm the presence of specific types of CNT and to verify the composition of the metallic impurities present.

Nanotechnologies — Caractérisation d’échantillons de nanotubes de carbone par analyse thermogravimétrique

General Information

• Status: Published
• Publication Date: 31-Mar-2020
• ICS: 07.030 - Physics. Chemistry
• ICS: 07.120 - Nanotechnologies
• Technical Committee: ISO/TC 229 - Nanotechnologies
• Drafting Committee: ISO/TC 229/JWG 2 - Measurement and characterization
• Parallel Committee: IEC/TC 113 - Nanotechnology for electrotechnical products and systems
• Current Stage: 9092 - International Standard to be revised
• Completion Date: 16-Nov-2023

Relations

• Consolidated By: ISO 6847:2020 - Welding consumables — Deposition of a weld metal pad for chemical analysis
• Effective Date: 06-Jun-2022
• Revises: ISO/TS 11308:2011 - Nanotechnologies — Characterization of single-wall carbon nanotubes using thermogravimetric analysis
• Effective Date: 05-Nov-2015

Standards Content (Sample)

TECHNICAL ISO/TS
SPECIFICATION 11308
Second edition
2020-04
Nanotechnologies — Characterization
of carbon nanotube samples using
thermogravimetric analysis
Reference number
ISO/TS 11308:2020(E)
©
ISO 2020

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ISO/TS 11308:2020(E)

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ii © ISO 2020 – All rights reserved

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ISO/TS 11308:2020(E)

Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Symbols and abbreviated terms . 2
5 Principles of TGA . 3
5.1 Measurement . 3
5.2 Exothermic and endothermic reactions . 3
6 Sampling . 3
6.1 Sample pan selection . 3
6.2 Sample size . 4
6.3 Sample compaction . 4
7 Test method . 5
8 Data interpretation and results . 5
8.1 General . 5
8.2 Non-carbon content . 6
8.3 Constituents. 7
8.4 Thermal stability .
...