Methods of measurement on receivers for television broadcast transmissions - Part 2:Methods of electrical and acoustical measurements on audio channels
Electroacoustics-Instruments for measurement of aircraft noise-Performance requirements for systems to measure on-third-octave band sound pressure levels in noise certification of transport-category aeroplanes
Electroacoustics—Simulators of human head and ear—Part 5:2 cm3 coupler for the measurement of hearing aids and earphones coupled to the ear by means of ear inserts