ASTM-D5757 › Historical Revision Information
Standard Test Method for Determination of Attrition of FCC Catalysts by Air Jets
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1.1 This test method covers the determination of the relative attrition characteristics of powdered catalysts by means of air jet attrition. It is applicable to spherically or irregularly shaped particles which range in size between 10 and 180 um, have skeletal densities between 2.4 and 3.0 g/cm3 (2400 and 3000 kg/m3) and are insoluble in water. Particles less than 20 um are considered fines.
1.2 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.
abrasion; air jet; attrition; fines; powdered catalysts; ICS Number Code 71.040.30 (Chemical reagents)
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July 15, 1995