How often must test instruments be calibrated?

How often must test instruments be calibrated?

• A. Once each year or more often if necessary.
• B. Every two years.
• C. Every month.
• D. Only when requested by the user.

Answer: (A)

Regular calibration of test instruments is essential to keep measurements accurate. The standard is to calibrate at least once a year, and more often if the instrument shows drift, has been dropped or serviced, or after any repairs that could affect its accuracy. This ensures that audiometric results and related measurements reflect true values, which is critical for proper fitting, safety, and regulatory compliance. Calibrating every month is more frequent than necessary for routine practice, and calibrating every two years risks inaccurate readings. Waiting to calibrate only when the user requests ignores the responsibility to maintain reliable equipment. Therefore, calibration once a year or more often if needed is the correct approach.

Regular calibration of test instruments is essential to keep measurements accurate. The standard is to calibrate at least once a year, and more often if the instrument shows drift, has been dropped or serviced, or after any repairs that could affect its accuracy. This ensures that audiometric results and related measurements reflect true values, which is critical for proper fitting, safety, and regulatory compliance.

Calibrating every month is more frequent than necessary for routine practice, and calibrating every two years risks inaccurate readings. Waiting to calibrate only when the user requests ignores the responsibility to maintain reliable equipment. Therefore, calibration once a year or more often if needed is the correct approach.