ASTM-D3942 Standard Test Method for Determination of the Unit Cell Dimension of a Faujasite-Type Zeolite

ASTM-D3942 - 2003 R13 EDITION - CURRENT
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Standard Test Method for Determination of the Unit Cell Dimension of a Faujasite-Type Zeolite
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Scope

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 Å (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.

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.

Keywords

catalyst; faujasite; unit cell; X-ray diffraction; zeolite; ICS Number Code 71.100.40 (Surface active agents)

To find similar documents by ASTM Volume:

05.05 (Combustion Characteristics; Manufactured Carbon and Graphite Products; Catalysts)

05.06 (Gaseous Fuels; Coal and Coke)

To find similar documents by classification:

71.100.40 (Surface active agents)

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Document Number

ASTM-D3942-03(2013)

Revision Level

2003 R13 EDITION

Status

Current

Modification Type

Reapproval

Publication Date

Dec. 15, 2013

Document Type

Test Method

Page Count

3 pages

Committee Number

D32.05