Heterogeneity Evaluation of Research Materials for Microanalysis Standards Certification
Source abstract
Abstract
Electron microprobe testing and evaluation procedures to determine the extent of within- and between-specimen heterogeneity of reference materials and the experimental uncertainty are described. These procedures have been developed and used at NIST in the certification of several NIST Standard Reference Materials (SRMs). In this article, they have been simplified and updated for general use. Suggestions for experimental testing of specimens are described and a detailed description of the statistical evaluation process is included with an example of a data spreadsheet and instructions for its preparation.
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Research context
OpenAlex topics: Electron and X-Ray Spectroscopy Techniques · Advanced Materials Characterization Techniques · Ion-surface interactions and analysis
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References (13)
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