
Sound system equipment. Objective rating of speech intelligibility by speech transmission index
出版:British Standards Institution

专家解读视频
© British Standards Institution 2013
UNE EN 60268-16:2004 - Identical
I.S. EN 60268-16:2003 - Identical
IEC 60268-16 Ed. 3.0 - Identical
NBN EN 60268-16:2004 - Identical
NF EN 60268-16:2004 - Identical
DIN EN 60268-16 (2004-01) - Identical
SN EN 60268-16:2003 - Identical
SS EN 60268-16 Ed. 2 (2003) - Identical
BS 6840-16:1998 - Identical