Acoustics Standards

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Calibrated Device 
Condenser Microphone
Range
 (1) 1 inch (in accordance with IEC 61094-1 LS1)
Frequency: 1 kHz to 10 kHz (1/3 Octave)
 (2) 1/2 inch (in accordance with IEC 61094-1 LS2)
Frequency: 1 kHz to 20 kHz (1/3 Octave)
Uncertainty (1) 0.16 dB (1 kHz to 3.15 kHz),0.17 dB (4 kHz to 10 kHz)
(2) 0.16 dB (1 kHz to 5 kHz),0.17 dB (6.3 kHz to 20 kHz)
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