Grain size method for Al-castings

[Flesh]

Which method from ASTM E112 is typically used (by the foundry's lab) to measure grain size in aluminum castings? Is ASTM E112 the correct standard to use in this case (Al-castings)?

 

[Carburize]

Yes - E 112 is applicable

 

[TVP]

The linear intercept method is probably the most frequently used method from ASTM E 112. Image analysis techniques are starting to replace the manual methods.