![](https://www.opentextbooks.org.hk/sites/opentextbooks/files/book_profile/cc_icon/by-sa.png)
Available under Creative Commons-ShareAlike 4.0 International License.
- Visit this website to see what calibration services can be provided in Hong Kong.
- If you have a sound level meter, visit the HKAS website to check which laboratories are capable of doing the calibration.
- 899 reads