IEC 60486:1974 ed1.0

Заменен

Precision method for free-field calibration of one-inch standard condenser microphones by the reciprocity technique — 17 стр.

Описание Изменения Ссылки Версии

Describes a method for the free-field reciprocity calibration of one-inch condenser microphone capsules used as laboratory standards.

Заменен на

IEC 61094-3:1995 ed1.0

ICS

33.160.50 Auxiliaries. Including headphones, loudspeakers, microphones, etc. / Вспомогательные устройства. Включая наушники, громкоговорители, микрофоны и т.д.