CEN/TC 211
| Project No. | EN ISO 389-9:2009 |
|---|---|
| Title | 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. |
| Registration number (WIID) | 28465 |
| Scope | 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. |
| Status | Izstrādē |
| ICS group | 13.140 |