How often must acoustic calibrations be performed?

The correct answer is based on the standard practices and guidelines regarding the maintenance of audiometric equipment used in hearing conservation programs. Acoustic calibrations must be performed annually to ensure that the equipment is functioning correctly and that the test results are accurate and reliable. This annual calibration checks for consistency in sound pressure levels and frequency response, which are critical for maintaining the integrity of the hearing testing process.

Regular calibration is essential for identifying any alterations in the equipment that could affect the outcomes of hearing tests, helping to prevent misdiagnosis and ensuring compliance with occupational health regulations. In comparison, more frequent calibration, such as every six months or monthly, may be unnecessary and impractical, while extended intervals such as every two years may not provide sufficient oversight to catch potential issues in a timely manner.