B11 B11.9-1975 (R2005)

This standard applies only for the construction, care and use of grinding machines, designed primarily for metal removal, that present grinding tools against workpieces, producing change in shape, size, and surface finish by grinding. This standard also applies to these machines when they are grinding materials other than metals such as glass, ceramics, plastics, and rubber. This standard does not apply to portable hand-held grinders, machines using loose abrasives, or machines used for concrete cutting on road construction jobs.

Excluded from the requirements of this standard are: lens polishing machines; masonry cutting and grinding machines; tumbling machines; others primarily not designed for metal removal.