Audiometric calibration: vital part of hearing conservation program.
D001299:Audiometry / Q000295:instrumentation / Q000592:standards*; D006311:Hearing Disorders / Q000517:prevention & control*; D006801:Humans; D009784:Occupational Diseases / Q000517:prevention & control*; D014481:United States; D014489:United States Occupational Safety and Health Administration