ASTM-D4122 › Standard Practice for Carbon Black—Evaluation of an Industry Reference Black
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1.1 This practice covers guidelines for the production and testing for uniformity of a lot of carbon black to be used as an Industry Reference Black (IRB).
1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
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.
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Significance and Use
3.1 These guidelines are intended to ensure that IRBs are evaluated by a standard procedure.
3.2 These guidelines are to be used to establish the average physicochemical and physical rubber properties of a lot of carbon black to be used as an IRB.
blending; industry reference blacks (IRBs); lot size; physical properties; physicochemical properties; shelf life; statistical analysis form; table for IRB test data; uniformity guidelines for production and testing;
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June 1, 2017