ANSI/ASA S1.15-2-2021 AMERICAN NATIONAL STANDARD Electroacoustics - Measurement microphones - Part 1: Specifications for laboratory standard microphones
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2005ANSI/ASA S1.15-2-2005 American National Standard Measurement Microphones - Part 2: Primary Method for Pressure Calibration of Laboratory Standard Microphones by the Reciprocity Technique