ISO/TC 43
| Project No. | ISO 389-9:2009 |
|---|---|
| Title | <p>ISO 389-9:2009 specifies test conditions for determining the hearing thresholds of subjects for the purpose of establishing standardized values for reference hearing threshold levels.</p> |
| Registration number (WIID) | 35251 |
| Scope | <p>ISO 389-9:2009 specifies test conditions for determining the hearing thresholds of subjects for the purpose of establishing standardized values for reference hearing threshold levels.</p> |
| Status | Standarts spēkā |
| ICS group | 13.140 |