ISO/TC 43/WG 1
| Registration number (WIID) | Project No. | Title | Status |
|---|---|---|---|
| 81331 | ISO/DIS 226 | Acoustics — Normal equal-loudness-level contours | Izstrādē |
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| Registration number (WIID) | Project No. | Title | Status |
|---|---|---|---|
| 81331 | ISO/DIS 226 | Acoustics — Normal equal-loudness-level contours | Izstrādē |