title: Calibration systems for laser power or energy measuring apparatus.
mesh_terms: D002151:Calorimetry / Q000295:instrumentation*; D003201:Computers; D003365:Costs and Cost Analysis; D004560:Electricity; D006077:Government Agencies; D006283:Health Physics; D007834:Lasers / Q000592:standards*; D014481:United States; D014486:United States Food and Drug Administration