
Acoustics; Pure Tone Air Conduction Threshold Audiometry For Hearing Conservation Purposes
出版:Swiss Standards

专家解读视频
1992 [01/02/1992]
"Indice de classement: SNV NF S31-081" (12/2001)
ISO 6189:1983 - Identical
NF EN 26189:1992 - Identical
DIN EN 26189 (1992-03) - Identical
DIN EN 26189 : 1992 - Identical
NF EN 26189 : 1992 - Identical
DIN EN 26189 : 1992 - Identical
ISO 6189 : 1983 - Identical