: It can be applied to any solid material (metals, ceramics, composites) with clearly distinguishable phases.
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ASTM E562-19 outlines a systematic manual point-count procedure to determine the volume fraction of microstructural constituents in materials, utilizing a grid-based overlay for statistical estimation. This standard, which supports accurate phase identification, provides a 95% confidence interval for measuring constituent ratios in metals, ceramics, and composites. Purchase the official ASTM E562-19 PDF from ASTM International ASTM International : It can be applied to any solid