SS EN 60645-4 Ed. 1 (1996)现行
Audiometers - Part 4: Equipment For Extended High-frequency Audiometry
出版：Standardiserings-Kommissionen I Sverige
专家解读视频
Specifies requirements for audiometric equipment designed for use in pure tone audiometry in the frequency range from 8,000 Hz to 16,000 Hz. Will ensure that extended high-frequency audiometry performed on a given human ear with different types of equipment that comply with this standard will give substantially similar results.
UNE EN 60645-4:1997 - Identical
NF EN 60645-4:1995 - Identical
I.S. EN 60645-4:1996 - Identical
IEC 60645-4 Ed. 1.0 - Identical
NBN EN 60645-4:1996 - Identical
DIN EN 60645-4 (1995-06) - Identical
BS EN 60645-4:1995 - Identical
SN EN 60645-4:1995 - Identical
