scope:

SCOPE AND PURPOSE

This standard specifies performance requirements for coupler-type acoustical calibrators. For each microphone type that may be used with the calibrator, requirements include the sound pressure level in the coupler, the frequency of the sound, and the determination of the influence of atmospheric pressure, temperature, humidity, and magnetic fields on the pressure level and frequency of the sound produced by the calibrator. Specifications are to be met within stated tolerances at each frequency and sound pressure level of operation.

This standard specifies performance requirements of acoustical calibrators and provides information for the user to determine how he should expect an acoustical calibrator to perform.