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ASTM D7084-23

Current Revision

Standard Test Method for Determination of Bulk Crush Strength of Catalysts and Catalyst Carriers

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1.1 This test method covers the determination of bulk crush strength of a bed of formed catalyst particles 1/32 to 3/16 in. (0.8 to 4.8 mm) in diameter and is intended to provide information concerning the ability of the catalyst material to maintain physical integrity.

1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered 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, health, and environmental 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.


5.1 This test method is a means of determining the crushing strength of a catalyst in a bed. Techniques to measure the crushing strength of formed catalyst particles is limited to crushing of individual particles, which may not be related to how the catalyst will crush in a reactor or bed. For some catalysts, such as granules, this technique may be the only viable method for obtaining crushing strength. The production of fines in a reactor is not desired because of the potential of bed compaction and the pressure buildup in the reactor.

SDO ASTM: ASTM International
Document Number D7084
Publication Date Dec. 15, 2023
Language en - English
Page Count 3
Revision Level 23
Supercedes
Committee D32.02
Publish Date Document Id Type View
Dec. 15, 2023 D7084-23 Revision
May 1, 2018 D7084-18 Revision
Oct. 1, 2004 D7084-04 Revision
Sept. 1, 2017 D7084-04R17 Reaffirmation
March 1, 2009 D7084-04R09 Reaffirmation