ISO 1138:2022

ISO 1138:2022 Rubber compounding ingredients - Carbon black - Determination of sulfur content

standard by International Organization for Standardization, 07/01/2022

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This document specifies two methods for the determination of the total sulfur in all types of carbon black for use in the rubber industry:

Method A, using a combustion furnace;
Method B, using an automatic analyser.

With respect to safety aspects and test precision, it is preferable to use automatic systems. Method B is therefore the preferred method. Classical chemical analysis (Method A) is acceptable if automatic equipment is not available.

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