Measurement microphones - Part 1: Specifications for laboratory standard microphones (IEC 61094-1:1992 + Corrigendum 1993); German version EN 61094-1:1994
Meßmikrofone - Teil 1: Anforderungen an Laboratoriums-Normalmikrofone (IEC 61094-1:1992 + Corrigendum 1993); Deutsche Fassung EN 61094-1:1994