Clean-up of inconsistencies in the standard that have occurred with many revisions since 1955 is needed. Also, I am adding and improving the addition of the Saltykov rectangle for planimetric grain size measurements.
ALA grain size; anisotropy index; area fraction; ASTM grain size number; calibration; equiaxed grains; etchant; grain boundary; grains; grain size; intercept count; intercept length; intersection count; non-equiaxed grains; twin boundaries ;
Citing ASTM Standards
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