B11 B11.4-2003 (R2013) PDF

This standard applies to those mechanically, hydraulically, hydramechanically, or pneumatically powered shears used to cut material by shearing and which utilize a fixed blade(s) and non-rotary moving blade(s).

The shears that are excluded from the requirements of this standard are slitting-rotary, nibblers; coil slitters; portable hand tools; rotary-blade slitters and shears; iron workers; alligator; angle, bar, bean, channel, and notching machines.