Laboratory Standard Microphones
1. Calibration is perormed in accordance with International Standards IEC61094-2.
2. Calibration is based on primary calibration method of reciprocity.
3. Both one-inch (63 Hz to 10 kHz) and half-inch (63 Hz to 25 kHz) microphones can be calibrated.
4. For calibration fees, please contact Mr. Y.K. Yan at (852) 2829 4855 or ykyan@itc.gov.hk.

