DIN EN 61094-1:2001-08 Measurement microphones - Part 1: Specifications for laboratory standard microphones (IEC 61094-1:2000); German version EN 61094-1:2000
2001DIN EN 61094-1:2001-08 Measurement microphones - Part 1: Specifications for laboratory standard microphones (IEC 61094-1:2000); German version EN 61094-1:2000
2001DIN EN 61094-1:2001 Measurement microphones - Part 1: Specifications for laboratory standard microphones (IEC 61094-1:2000); German version EN 61094-1:2000