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ASTM D5230-14

ASTM D5230-14

Standard Test Method for Carbon Black—Automated Individual Pellet Hardness

2016-10-19 /Historical
Superseeded by:
Significance and Use:

4.1 Individual pellet hardness is related to several carbon black characteristics. Among these are mass strength and attrition. The subsequent level of dispersion obtained in some mixed compounds containing the carbon black may be affected by pellet hardness. Acceptable pellet hardness must be agreed to by the user and the producer.


1.1 This test method covers a procedure for measuring individual pellet hardness of carbon black by the automated pellet hardness tester.2

1.2 The values stated in SI units are to be regarded as the standard. The values 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.

carbon black; pellet crush strength; pellet hardness
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