IEC 60126:1961/COR1:1965 ed1.0

Заменен

Corrigendum 1 - IEC reference coupler for the measurement of hearing aids using earphones coupled to the ear by means of ear inserts — 0 стр.

Заменен на

IEC 60126:1973 ed2.0

ICS

17.140.50 Electroacoustics. Including sound level meters / Электроакустика. Включая слуховые аппараты и шумомеры