UNI EN ISO 389-7:2006被替代
Acoustics - Reference Zero For The Calibration Of Audiometric Equipment - Part 7: Reference Threshold Of Hearing Under Freefield And Diffuse-field Listening Conditions
出版：Italian Standards
专家解读视频
Specifies a reference threshold of hearing for the calibration of audiometric equipment used under the following conditions.
NS EN ISO 389-7 Ed. 2 (2006) - Identical
ONORM EN ISO 389-7:2006 - Identical
DIN EN ISO 389-7 (2006-04) - Identical
BS EN ISO 389-7:2005 - Identical
SN EN ISO 389-7:2006 - Identical
NEN EN ISO 389-7:2006 - Identical
NF EN ISO 389-7:2006 - Identical
NBN EN ISO 389-7:2006 - Identical
I.S. EN ISO 389-7:2005 - Identical
SS EN ISO 389-7 Ed. 2 (2005) - Identical
ISO 389-7:2005 - Identical
EN ISO 389-7:2005 - Identical
UNE EN ISO 389-7:2006 - Identical
