This part of IEC 61094 gives guidelines for the design of actuators for microphones equipped with electrically conductive diaphragms; gives methods for the validation of electrostatic actuators; gives a method for determining the electrostatic actuator response of a microphone.
American National Standard Electroacoustics – Simulators of human head and ear – Part 8: Acoustic coupler for high-frequency measurements of hearing aids and earphones coupled to the ear by means of ear inserts standard by American National Standards of the Acoustical Society of America, 04/10/2023
Shaft alignment methodology, Part 3: alignment of vertically oriented rotating machinery standard by American National Standards of the Acoustical Society of America, 11/04/2021