
IS 7157 (1987): Portable Pneumatic Grinding Machines
PORTABLE PNEUMATIC GRINDING MACHINES ( First Revision ) 1. Scope Specifies the dimensions and requirements of portable pneumatic grinding machines suitable for working with abrasive wheels of nominal diameter up to 250 mm. It does not cover grinding machines for use with coated sanding discs. 2. Terminology Free Air Consumption Volume of air. corrected to standard atmospheric ...