text: Acoustical standards - National Research Council Canada
  The uncertainties quoted in the descriptions below are expanded uncertainties representing a confidence level of approximately 95 percent.
  Specialized space available includes an anechoic chamber with a low frequency cut-off at about 80 Hz, a relatively large measurement space (15.2 m x 8.8 m x 6.7 m) for indoor semi-free-field measurements, and complementary acoustical instrumentation.
  A33-01-00-01 Handling fee for instrument unsuitable for calibration. A fee is charged for any instrument found to be unsuitable for calibration. This fee covers receipt, inspection and return of the instrument and any work done prior to discovery of the fault. $265
  A33-01-01-01 Pressure sensitivity level of measurement microphone by the reciprocity technique. Measurement of the pressure sensitivity levels of up to two Laboratory Standard measurement microphones of the same type by the reciprocity method of IEC 61094-2 $5,035
  A33-01-03-01 Sound calibrator - single level/frequency setting. Measurement of sound pressure level, frequency and total distortion of a sound calibrator that provides a single level setting and a single frequency setting. $1,030
  A33-01-03-05 Sound calibrator - multifrequency and multilevel. Measurement of sound pressure level, frequency and total distortion of a multi-frequency, multi-level sound calibrator. $3,185
  A33-01-03-06 Sound calibrator - two level settings and one frequency setting. Measurement of sound pressure level, frequency and total distortion of a sound calibrator that provides two level settings and a single frequency setting. $1,150
  A33-01-04-01 Acceleration measuring chain - interferometric measurement over full frequency range. Measurement of voltage sensitivity of acceleration measuring chain (or accelerometer alone, by arrangement) by absolute interferometric measurement (ISO 16063-11 methods 1 and 2) at one-third-octave band centre frequencies from 10 Hz or 16 Hz (by arrangement) to 5 kHz. $3,390
  A33-01-04-04 Acceleration measuring chain - comparison measurement from 2 Hz to 10 Hz. Measurement of voltage sensitivity of acceleration measuring chain (accelerometer and associated conditioning amplifier) by comparison with a reference accelerometer at not more than four selected frequencies from 2 Hz to 10 Hz. $1,960
  A33-01-04-05 Accelerometer - shock comparison and sinusoidal comparison. Measurement of sensitivity of accelerometer by comparison with a calibrated reference accelerometer in response to sinusoidal excitation at one-third-octave band centre frequencies from 16 Hz to 5 kHz. Fee on request
  A33-01-04-06 Accelerometer - shock comparison only. Measurement of shock sensitivity of accelerometer by comparison with a calibrated reference accelerometer for accelerations in the range from 200 m/s² to 100 000 m/s² (depending on accelerometer capability). Fee on request