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Significance and Use
2-Mercaptobenzothiazole (MBT) is usually the major impurity in MBTS. Free MBT may be determined by this test method.
MBT and MBTS are used for rubber and latex vulcanization acceleration. The amount of MBT in MBTS may be of importance in predicting performance in rubber compounds and for raw material purchase and control.
This test method may be used as a quality control tool and for research and development work.
1.1 This test method covers the procedure for estimation of the acidic impurities in benzothiazyl disulfide (MBTS).
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this 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.
D1193 Specification for Reagent Water
D4483 Practice for Evaluating Precision for Test Method Standards in the Rubber and Carbon Black Manufacturing Industries
ICS Number Code 83.060 (Rubber)
UNSPSC Code 12352100(Organic derivatives and substituted compounds)
ASTM D5044-06(2012), Standard Test Method for Rubber Compounding Materials—Free 2-Mercaptobenzothiazole (MBT) in Benzothiazyl Disulfide (MBTS) , ASTM International, West Conshohocken, PA, 2012, www.astm.orgBack to Top