ASTM-D5758 2021

$29.79

D5758-01(2021) Standard Test Method for Determination of Relative Crystallinity of Zeolite ZSM-5 by X-Ray Diffraction

Published By	Publication Date	Number of Pages
ASTM	2021	4

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Categories: 71.040.50 - Physicochemical methods of analysis, ASTM

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Description

ASTM D5758-01-Reapproved2021

Active Standard: Standard Test Method for Determination of Relative Crystallinity of Zeolite ZSM-5 by X-Ray Diffraction

ASTM D5758

Scope

1.1 This test method covers a procedure for determination of the relative crystallinity of zeolite ZSM-5 using selected peaks from the X-ray diffraction pattern of the zeolite.

1.2 The test method provides a number that is the ratio of intensity of a portion of the XRD pattern of the sample ZSM-5 to intensity of the corresponding portion of the pattern of a reference ZSM-5. The intensity ratio, expressed as a percentage, is then labeled percent XRD relative crystallinity/ZSM-5. This type of comparison is commonly used in zeolite technology and is often referred to as percent crystallinity.

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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

Keywords

crystallinity; X-ray diffraction; zeolite ZSM-5;

ICS Code

ICS Number Code 71.040.50 (Physicochemical methods of analysis)

DOI: 10.1520/D5758-01R21

Additional information

Standard Title	D5758-01(2021) Standard Test Method for Determination of Relative Crystallinity of Zeolite ZSM-5 by X-Ray Diffraction
Published Code	ASTM
Publication Date	2021
Pages Count	4
ICS Codes	71.040.50 - Physicochemical methods of analysis