Environmental Health & Safety | CU-Boulder

Scope. This program applies to all Class 3b and Class 4 lasers used in research and instructional laboratories at the University of Colorado at Boulder. ... Some lasers or laser systems have long warm-up times, and it may not be practical to turn the power off to the laser when the laser is not in use. In these cases, Class 3b and 4 lasers ... ................
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