
Electroacoustics - Audio-Frequency Induction Loop Systems For Assisted Hearing - Part 1: Methods Of Measuring And Specifying The Performance Of System Components (Iec 62489-1:2010/A2:2017)
出版:European Committee for Standards - Electrical

专家解读视频
2010 AMD 2 2018 [01/02/2018]2010 AMD 1 2015 [01/02/2015]2010 [01/04/2010]
UNE EN 62489-1:2011 - Identical
SS EN 62489-1 Ed. 1 (2011) - Identical
I.S. EN 62489-1:2010 - Identical
DIN EN 62489-1 (2010-11) - Identical
NBN EN 62489-1:2010 - Identical
OVE/ONORM EN 62489-1:2011 - Identical
BS EN 62489-1:2010+A1:2015 - Identical
OVE/ONORM EN 62489-1:2015 - Identical
DIN EN 62489-1 (2015-10) - Identical
DS EN 62489-1:2010 - Identical
CEI EN 62489-1 Ed. 2 (2013) - Identical
CEI EN 62489-1 Ed. 1 (2011) - Identical
BS EN 62489-1:2010 - Identical
NEN EN IEC 62489-1:2010 - Identical
PN EN 62489-1:2010 - Identical
NF EN 62489-1:2010 - Identical