IEC 61094-1:2000 PDF

Scope: This part of IEC 61094 specifies 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. This part also establishes a system for classifying laboratory standard condenser micro-phones into a number of types according to their dimensions and properties in order to facilitate the specification of calibration methods, the conducting of inter-laboratory comparisons involving the calibration of the same microphones in different laboratories, and the interchangeability of microphones in a given calibration system.

IEC 61094-1:2000 history

2000 IEC 61094-1:2000 Measurement microphones - Part 1: Specifications for laboratory standard microphones
1970 IEC 61094-1:1992/COR1:1993 Measurement microphones - Part 1: Specifications for laboratory standard microphones
1992 IEC 61094-1:1992 Measurement Microphones Part 1: Specifications for Laboratory Standard Microphones (Edition 1.0 ; Corrigendum: 02/1993; EN 61094-1: 1994)