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ASTM D4926-89(2001)

Historical Reaffirmation

Standard Test Method for Gamma Alumina Content in Catalysts and Catalyst Carriers Containing Silica and Alumina by X-ray Powder Diffraction

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1.1 This test method covers the determination of gamma alumina and related transition aluminas in catalysts containing silica and alumina by X-ray powder diffraction, using the diffracted intensity of the peak occurring at about 67°20 when copper Kα radiation is employed.

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.


SDO ASTM: ASTM International
Document Number D4926
Publication Date March 31, 1989
Language en - English
Page Count 2
Revision Level 89(2001)
Supercedes
Committee D32.01
Publish Date Document Id Type View
Oct. 1, 2020 D4926-20 Revision
Dec. 1, 2015 D4926-15 Revision
April 1, 2006 D4926-06 Revision
April 1, 2011 D4926-06R11 Reaffirmation
March 31, 1989 D4926-89R01 Reaffirmation
March 31, 1989 D4926-89R94E01 Reaffirmation