ASTM D7084-04(2009)
Standard Test Method for Determination of Bulk Crush Strength of Catalysts and Catalyst Carriers

Standard No.

ASTM D7084-04(2009)

Release Date

2004

Published By

American Society for Testing and Materials (ASTM)

Status

Be replaced

Replace By

ASTM D7084-04(2017)

Latest

ASTM D7084-23

Scope

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.

1.1 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.

ASTM D7084-04(2009) Referenced Document

• ASTM D3766 Standard Terminology Relating to Catalysts and Catalysis
• ASTM D4180 Standard Test Method for Vibratory Packing Density of Formed Catalyst Particles and Catalyst Carriers
• ASTM E177 Standard Practice for Use of the Terms Precision and Bias in ASTM Test Methods
• ASTM E456 Standard Terminology for Relating to Quality and Statistics
• ASTM E691 Standard Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method

ASTM D7084-04(2009) history

• 2023 ASTM D7084-23 Standard Test Method for Determination of Bulk Crush Strength of Catalysts and Catalyst Carriers
• 2018 ASTM D7084-18 Standard Test Method for Determination of Bulk Crush Strength of Catalysts and Catalyst Carriers
• 2017 ASTM D7084-04(2017) Standard Test Method for Determination of Bulk Crush Strength of Catalysts and Catalyst Carriers
• 2004 ASTM D7084-04(2009) Standard Test Method for Determination of Bulk Crush Strength of Catalysts and Catalyst Carriers
• 2004 ASTM D7084-04 Standard Test Method for Determination of Bulk Crush Strength of Catalysts and Catalyst Carriers