00979nam a22001337a 4500999001700000245010900017250000800126260006400134300001000198505052600208650001600734942000700750952008800757  c16224d16224  aIEC 61094-1:2000-Measurement microphones - Part 1 : bSpecifications for laboratory standard microphones  a2.0  aGeneva :bInternational Electrotechnical Commission,c2000.  a36 p.  aSpecifies mechanical dimensions and certain electroacoustic characteristics for condenser microphones used as laboratory standards for the realization of the unit of sound pressure and for sound pressure measurements of the highest attainable accuracy. The specifications are intended to ensure that primary calibration by the reciprocity method can be readily carried out. Establishes a system for classifying laboratory standard condenser microphones into a number of types according to their dimensions and properties.  aMicrophones  cST  00104070aAIISHbAIISHd2020-06-22l0pST010r2020-06-22 00:00:00w2020-06-22yST