Purpose of this standard is to establish a nationally recognized basis for checking the size of abrasive grain for use in the manufacture of grinding wheels, general polishing and other industrial uses such as pressure blasting, lithoplate graining, etc.
ANSI B74.12-2012 history
2012ANSI B74.12-2012 Specifications for the Size of Abrasive Grain-Grinding Wheels, Polishing and General Industrial Uses