| Calibrated Device | Condenser Microphone |
|---|---|
| Range | (1) 1 inch (in accordance with IEC 61094-1 LS1) (1a) 1/3 Octave Band，Frequency：2 Hz to 12.6 kHz (1b) 1/1 Octave Band，Frequency：31.5 Hz to 8 kHz (2) 1/2 inch (in accordance with IEC 61094-1 LS2) (2a) 1/3 Octave Band，Frequency：10 Hz to 25.2 kHz (2b) 1/1 Octave Band，Frequency：16 Hz to 16 kHz |
| Uncertainty | (1) 0.08 dB (2 Hz to 2.5 Hz)，0.06 dB (2.5 Hz(excluded) to 8 Hz)，0.05 dB (8 Hz(excluded) to 2 kHz)，0.06 dB (2 kHz(excluded) to 4 kHz)，0.08 dB (4 kHz(excluded) to 6.3 kHz)，0.12 dB (6.3 kHz(excluded) to 10 kHz)，0.16 dB (10 kHz(excluded) to 12.6 kHz) (2) 0.06 dB (10 Hz to 16 Hz)，0.05 dB (16 Hz(excluded) to 3.2 kHz)，0.06 dB (3.2 kHz(excluded) to 8 kHz)，0.08 dB (8 kHz(excluded) to 10 kHz)，0.12 dB (10 kHz(excluded) to 16 kHz)，0.14 dB (16 kHz(excluded) to 20 kHz)，0.22 dB (20 kHz(excluded) to 25.2 kHz) |
