| UOM | Category | Short Description | Long Description |
|---|---|---|---|
| VPB | VPROPO | ppb(V) | Volume parts per billion |
| VPM | VPROPO | ppm(V) | Volume parts per million |
| VPT | VPROPO | ppt(V) | Volume parts per trillion |
| W | POWER | W | Watt |
| WCH | TIME | Weeks | Weeks |
| WMK | THCOND | W/(m*K) | Heat Conductivity |
| WMP | RADEFF | Wm-2 ppb-1 | Watt/sqm./parts per billon |
| WTL | EVARA | kg/s*m2 | Evaporation Rate |
| YD | LENGTH | Yards | Yards |
| YD2 | SURFAC | Yard2 | Square Yard |
| YD3 | VOLUME | Cubic yard | Cubic yard |