| UOM | Category | Short Description | Long Description |
|---|---|---|---|
| SVS | DOSRAT | Sv/s | Sieverts per second |
| TAG | TIME | Days | Days |
| tbl | DENSI | t/bbl | Ton/US Barrel |
| TBQ | ACTVTY | TBq | Terabecquerel |
| tbt | MAPER | t/Btu | Ton/British Thermal Unit |
| TC3 | TKONZ | 1/cm3 | 1/cubic centimeter |
| TCM | TKONZ | ppcm3 | Particle/Cubic Centimeter |
| TES | MAGNFD | D | Tesla |
| TEU | AAAADL | TEU | Twenty-Foot Equivalent Unit |
| tgl | DENSI | ton/gal | US Ton/US Gallon |
| TH | AAAADL | Thousands | Thousands |
| THA | MASSBD | t/ha | Ton per Hectare |
| thm | ENERGY | Therm | Therm (EC) |
| TJH | MASFLO | t/Year | Ton/Year |
| tjl | MAPER | t/Joule | Ton/Joule |
| TKL | DENSI | t/kl | Ton/1000 Liter |
| TKT | MPROPO | t/kt | Ton/Kiloton |
| TM3 | TKONZ | 1/m3 | 1/cubic meter |