Applies to constituents (a phase as well as a micrographic constituent composed of two or more phases) which are clearly identifiable. The point grid is superimposed a given number of fields of the observed surface. By counting the number of points the volume fraction is calculated.
Document identifier
ISO 9042:1988
Title
Steels - Manual point counting method for statistically estimating the volume fraction of a constituent with a point grid
ISO Category
TC 17/SC 7: Methods of testing (other than mechanical tests and chemical analysis)
Publication date
1988-12-01
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