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ASTM D3942-97

Historical Revision

Standard Test Method for Determination of the Unit Cell Dimension of a Faujasite-Type Zeolite

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1.1 This test method covers the determination of the unit cell dimension of zeolites having the faujasite crystal structure, including synthetic Y and X zeolites, their modifications such as the various cation exchange forms, and the dealuminized, decationated, and ultra stable forms of Y. These zeolites have cubic symmetry with a unit cell parameter usually within the limits of 24.2 and 25.0 (2.42 and 2.50 nm).

1.2 The samples include zeolite preparation in the various forms, and catalysts and adsorbents containing these zeolites. The zeolite may be present in amounts as low as 5 %, such as in a cracking catalyst.

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 D3942
Publication Date Jan. 1, 1997
Language en - English
Page Count 3
Revision Level 97
Supercedes
Committee D32.05
Publish Date Document Id Type View
Jan. 1, 2025 D3942-25 Revision
April 1, 2019 D3942-19 Revision
March 10, 2003 D3942-03 Revision
Jan. 1, 1997 D3942-97 Revision
Dec. 1, 2013 D3942-03R13 Reaffirmation
April 1, 2008 D3942-03R08 Reaffirmation