Significance and Use
The toluene discoloration value provides an estimate of toluene-soluble discoloring residues present on the carbon black.
1. Scope
1.1 This test method covers the measurement of the degree of toluene discoloration by carbon black extractables and is useful in controlling the reaction processes for production of carbon black. This test method may not be applicable to carbon blacks with high extractables.
1.2 The values stated in SI units are to be regarded as standard.
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
2. Referenced Documents (purchase separately) 
The documents listed below are referenced within the subject standard but are not provided as part of the standard.
ASTM Standards
D1799 Practice for Carbon Black--Sampling Packaged Shipments
D1900 Practice for Carbon Black--Sampling Bulk Shipments
D4483 Practice for Evaluating Precision for Test Method Standards in the Rubber and Carbon Black Manufacturing Industries
Keywords
carbon black; extractables; toluene; discoloration;
ICS Code
ICS Number Code 83.040.20 (Rubber compounding ingredients)
DOI: 10.1520/D1618-99R11
ASTM International is a member of CrossRef.
Citing ASTM Standards
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