ASTM WK44003

    New Test Method for Identification and Quantification of Rare Earth Elements (REEs) in Rare Earth Materials (REMs) by X-ray Fluorescence Spectrometry

    (What is a Work Item?)

    Developed by Subcommittee: F40.04 | Committee F40 | Contact Staff Manager


    1. Scope

    Characterization of REEs in ores and refined REE ores, from PLOQ to 99.9999 wt/wt%

    Manufacturers need specified and thus characterized REEs and REMs to produce according specifications. Also minimizing unnecesarry inclusion of not needed REE is economic not viable and characterization can prevent this.


    Lanthanides, LREE, HREE, Sc, Y, La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, yb, Ly

    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:

    Technical Contact:
    Taco Van Der Maten

    Draft Under Development