Rubber compounding ingredients. Carbon black. Determination of sulfur content shop-only characterization and reliability data generation

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Rubber compounding ingredients. Carbon black. Determination of sulfur content shop-only characterization and reliability data generation1 Scope This International Standard specifies three methods for the determination of the total sulfur in all types of carbon black for use in the rubber industry: Method A, using an oxygen bomb calorimeter; Method B, using a combustion furnace; Method C, using an automatic analyser. With respect to safety aspects and test precision, it is preferable to use automatic systems. Classical chemical analysis (Method A and Method B) is acceptable if