Most customers use our digital services (e.g. eServices, web chat, website) to find out about the latest work pass requirements. If you’re unable to do so, you can make an appointment to visit our services centres.
Skip to main content

How often do I need to calibrate equipment used for noise monitoring?

You need to calibrate the equipment in laboratories:

  • Once every 12 months.
    Or
  • According to manufacturers’ recommendations.
  • Whichever is shorter.

You also need to carry out field calibration of the equipment before and after noise monitoring.

If both readings differ by more than 0.5 dB, you must not use the readings and redo.

More information can be found in the WSH Guidelines on Hearing Conservation Programme.