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ISO 7554-3:2026 Surgical instruments — Terms, measuring methods and test methods — Part 3: Test methods

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ISO 39004:2026 Road traffic safety — Good practice for service providers using digital platform

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ISO 23690:2023

ISO 23690:2023 Nanotechnologies – Multiwall carbon nanotubes – Determination of carbon impurity content by thermogravimetric analysis

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SKU: 9697efe2296f Categories: ,

Description

This document specifies a mild oxidation method to determine the content of carbon impurities (carbon material content not in the form of CNT, including amorphous carbon and trace amountd of other types of structured carbon) less stable than multiwall carbon nanotubes (MWCNTs) by thermogravimetric analysis (TGA) under carbon dioxide atmosphere.

This document is applicable to the characterization of carbon impurities content in MWCNT samples prepared by chemical vapour deposition (CVD). Measurement of carbon impurities in MWCNT samples prepared by other methods can refer to this document. This method is not applicable to functionalized MWCNT samples or MWCNT samples with encapsulant species.

NOTE       This method is applicable for the case of TG curves with a single-stage.

Edition

1

Published Date

2023-07-27

Status

PUBLISHED

Pages

21

Language Detail Icon

English

Format Secure Icon

Secure PDF

Abstract

This document specifies a mild oxidation method to determine the content of carbon impurities (carbon material content not in the form of CNT, including amorphous carbon and trace amountd of other types of structured carbon) less stable than multiwall carbon nanotubes (MWCNTs) by thermogravimetric analysis (TGA) under carbon dioxide atmosphere.

This document is applicable to the characterization of carbon impurities content in MWCNT samples prepared by chemical vapour deposition (CVD). Measurement of carbon impurities in MWCNT samples prepared by other methods can refer to this document. This method is not applicable to functionalized MWCNT samples or MWCNT samples with encapsulant species.

NOTE       This method is applicable for the case of TG curves with a single-stage.

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