ASTM D7084 - 04(2009)
Standard Test Method for Determination of Bulk Crush Strength of Catalysts and Catalyst Carriers
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Significance and Use
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.
1. Scope
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 and health practices and determine the applicability of regulatory limitations prior to use.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
ASTM Standards
D3766 Terminology Relating to Catalysts and Catalysis
D4180 Test Method for Vibratory Packing Density of Formed Catalyst Particles and Catalyst Carriers
E177 Practice for Use of the Terms Precision and Bias in ASTM Test Methods
E456 Terminology Relating to Quality and Statistics
E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
ICS Code
ICS Number Code 71.100.99 (Other products of the chemical industry)
UNSPSC Code
UNSPSC Code 12161600(Catalysts)
Referencing This Standard
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DOI: 10.1520/D7084-04R09
Citation Format
ASTM D7084-04(2009), Standard Test Method for Determination of Bulk Crush Strength of Catalysts and Catalyst Carriers, ASTM International, West Conshohocken, PA, 2009, www.astm.org
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