ASA S1.12-1967(R1997)
[ Withdrawn ]
American National Standard Specifications for Laboratory Standard Microphones - WITHDRAWN
standard by American National Standards of the Acoustical Society of America, 01/01/1967
Full Description
This standard describes types of laboratory microphones that are suitable for calibration by an absolute method such as the reciprocity technique described in USA Standard Method for the Calibration of Microphones, S1.10-1966. These microphones are intended for use as acoustical measurement standards either in a free-field or in conjunction with a variety of devices such as artificial voices and couplers for calibrating earphones or microphones.