Working Standard Microphones

1. Calibration is performed in accordance with International Standards IEC61094-5.

2. Calibraton is based on comparison method of calibration.

3. Covers frequency range from 63 Hz to 20 kHz.

4. For calibration fees, please contact Mr. Y.K. Yan at (852) 2829 4855 or ykyan@itc.gov.hk.