GB/T 24490-2009: Test method for purity of multi-walled carbon nanotubes

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Scope

This standard specifies the method, instrument, analysis procedure, result presentation
method for measuring the purity of multi-walled carbon nanotubes.
This standard provides a method for measuring the purity of multi-walled carbon
nanotubes (MWCNTs) samples, using a combination of charcoal burning,
thermogravimetric analysis (TGA), transmission electron microscopy (TEM), image
analysis. The purity is represented by the content (mass fraction) of multi-walled carbon
nanotubes in the sample.
This standard is not applicable to samples, which have poor uniformity OR contain
large carbon phase impurities.

Basic Data

Standard ID	GB/T 24490-2009 (GB/T24490-2009)
Description (Translated English)	Test method for purity of multi-walled carbon nanotubes
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	G13
Classification of International Standard	59.100.20
Word Count Estimation	10,190
Date of Issue	2009-10-30
Date of Implementation	2010-06-01
Quoted Standard	GB/T 14837; GB/T 24491
Regulation (derived from)	National Standard Approval Announcement 2009 No.12 (Total No.152)
Issuing agency(ies)	General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary	This standard specifies the purity MWCNTs measurement methods, instrument, analysis procedures and results of representation. This standard does not apply to poor uniformity or chunk of carbon phase containing impurities in the sample.