Astm E56219: Pdf

ASTM E562-19, "Standard Test Method for Determining Volume Fraction by Systematic Manual Point Count," ASTM International, West Conshohocken, PA, 2019, DOI: 10.1520/E0562-19

The standard specifies the method for Determining Volume Fraction by Systematic Manual Point Count . It is primarily used in metallography to quantify the amount of a specific phase (like ferrite or sigma phase) within a material's microstructure. Key Technical Details

: The total points counted are divided by the total grid points to get a point fraction . This is averaged over multiple fields (typically around 30 images) to reach a reliable statistical estimate with a 95% confidence interval.

No, but they are related. ISO 9042 (Steel – Manual point counting method) is similar but not identical. ASTM E562-19 is more general for any metal or ceramic microstructure.

ASTM E562-19 is a standard practice that outlines the procedures for measuring and reporting the thickness of coatings applied to substrates. This standard provides a systematic approach to ensure that coating thickness measurements are continuous, accurate, and reliable. The practice covers a range of coating types, including paints, varnishes, and other applied finishes.