SN EN 60645-4:1995现行
Audiometers - Part 4: Equipment For Extended High-frequency Audiometry
出版：Swiss Standards
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.
DIN EN 60645-4 (1995-06) - Identical
BS EN 60645-4:1995 - Identical
SS EN 60645-4 Ed. 1 (1996) - Identical
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
