ISO 3858:2004 specifies a method for the determination of the light transmittance of the toluene extract from carbon black for use in the rubber industry, as a means of measuring the discolouration caused by the extractable matter.
The light transmittance value provides an estimate of the degree of discolouration caused by the toluene-extractable matter present on the surface of the carbon black.
The method may not be applicable to carbon blacks with a high extractable-matter content.
WITHDRAWN
ISO 3858:2004
95.99
Withdrawal of Standard
1 sht 2008
WITHDRAWN
ISO 3858:2008
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