Measurement microphones - Part 3: Primary method for free-field calibration of laboratory standard microphones by the reciprocity technique (IEC 29/873/CDV:2015); German and English version prEN 61094-3:2015
Electroacoustics - Measurement microphones - Part 3: Primary method for free-field calibration of laboratory standard microphones by the reciprocity technique (IEC 61094-3:2016 + COR1:2016); German version EN 61094-3:2016 + AC:2017-01— 33 стр.
