
Electroacoustics - Audiometric Equipment - Part 1: Equipment For Pure-Tone And Speech Audiometry
出版:Polish Committee for Standardization

專家解讀視頻
2017 [11/12/2017]2015 [17/04/2015]2004 [25/05/2004]2003 [15/06/2003]1998 [28/10/1998]
Supersedes PN EN 60645-4. (05/2015)
IEC 60645-1 : 4.0 - Identical
EN 60645-1 : 2017 - Identical
EN 60645-1:2017 - Identical