ASTM D4926-89(2001)
Standard Test Method for Gamma Alumina Content in Catalysts Containing Silica and Alumina by X-Ray Powder Diffraction

Standard No.

ASTM D4926-89(2001)

Release Date

1989

Published By

American Society for Testing and Materials (ASTM)

Status

Be replaced

Replace By

ASTM D4926-06

Latest

ASTM D4926-20

Scope

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 67176;20 when copper K945; 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.

ASTM D4926-89(2001) history

• 2020 ASTM D4926-20 Standard Test Method for Gamma Alumina Content in Catalysts and Catalyst Carriers Containing Silica and Alumina by X-ray Powder Diffraction
• 2015 ASTM D4926-15 Standard Test Method for Gamma Alumina Content in Catalysts and Catalyst Carriers Containing Silica and Alumina by X-ray Powder Diffraction
• 2006 ASTM D4926-06(2011) Standard Test Method for Gamma Alumina Content in Catalysts Containing Silica and Alumina by X-ray Powder Diffraction
• 2006 ASTM D4926-06 Standard Test Method for Gamma Alumina Content in Catalysts Containing Silica and Alumina by X-ray Powder Diffraction
• 1989 ASTM D4926-89(2001) Standard Test Method for Gamma Alumina Content in Catalysts Containing Silica and Alumina by X-Ray Powder Diffraction
• 1989 ASTM D4926-89(1994)e1 Standard Test Method for Gamma Alumina Content in Catalysts Containing Silica and Alumina by X-Ray Powder Diffraction