ASTM WK9245

    New STM for Determination of Relative Crystallinity of Mordenite Zeolite by X-ray Diffraction

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    Developed by Subcommittee: D32.05 | Committee D32 | Contact Staff Manager



    WK9245

    1. Scope

    This method covers a procedure for determination of the percent relative crystallinity of Mordenite (MOR) zeolite using selected peaks from the X-Ray diffraction (XRD) pattern of the zeolite. The method provides a number that is the ratio of intensity of a portion of the XRD pattern of the sample MOR to intensity of the corresponding portion of the pattern of a reference MOR. The intensity ratio, expressed as a percentage, is then labeled relative crystallinity/MOR. This type of comparison is commonly used in zeolite technology and is often referred to as percent crystallinity.


    Keywords

    mordenite; zeolite; x-ray diffraction,

    Rationale

    Mordentite is used commercially and a robust analytical method is needed.

    The title and scope are in draft form and are under development within this ASTM Committee.

    Citing ASTM Standards
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    Work Item Status

    Date Initiated:
    10-12-2005

    Technical Contact:
    Thomas Szymanski

    Status:
    Draft Under Development