ANSI B7.1-2000 pdf download.Safety Requirements for Use, Care and Protection of Abrasive Wheels. 1.2.20 device: A piece of equipment or a mechanism designed to serve a special pur- pose or perform a special function. (See de- vice, safety.) 1.2.21 device, auxiliary: A device that by itself does not safeguard hazards but is re- quired to ensure the proper operation of...
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