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ASTM D4781-03(2013)

Historical Reaffirmation

Standard Test Method for Mechanically Tapped Packing Density of Fine Catalyst Particles and Catalyst Carrier Particles

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1.1 This test method covers the determination of the mechanically tapped packing density of fine catalyst and catalyst carrier particles smaller than 0.8 mm in diameter.

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.


5.1 This test method is for measuring the mechanically tapped packing density of powders that are smaller than 0.8 mm in diameter, such as Fluidized Catalytic Cracking Catalysts (FCC).

SDO ASTM: ASTM International
Document Number D4781
Publication Date March 1, 2013
Language en - English
Page Count 2
Revision Level 03(2013)
Supercedes
Committee D32.02
Publish Date Document Id Type View
Sept. 1, 2024 D4781-24 Revision
Oct. 1, 2003 D4781-03 Revision
Oct. 10, 1999 D4781-99 Revision
May 1, 2018 D4781-03R18E01 Reaffirmation
March 1, 2013 D4781-03R13 Reaffirmation
April 1, 2008 D4781-03R08 Reaffirmation