| UOM | Category | Short Description | Long Description |
|---|---|---|---|
| HAR | SURFAC | Hectare | Hectare |
| HL | VOLUME | hl | Hectoliter |
| HPA | PRESS | hPa | Hectopascal |
| HZ | FREQU | Hz | Hertz (1/second) |
| IN | LENGTH | Inches | Inch |
| IN2 | SURFAC | Inch2 | Square inch |
| IN3 | VOLUME | Cubic inch | Cubic inch |
| J | ENERGY | J | Joule |
| JHR | TIME | Year | Years |
| JKG | SPENER | J/kg | Joule/Kilogram |
| JKK | SPHCAP | J/(kg*K) | Spec. Heat Capacity |
| jm3 | PRESS | J/m3 | Joule/Cubic Meter |
| JMO | MOENER | J/mol | Joule/Mole |
| K | TEMP | K | Kelvin |
| KA | ECURR | kA | Kiloampere |
| KAN | AAAADL | Canister | Canister |
| KAR | AAAADL | Carton | Carton |
| KB2 | SURCNT | kBq/c2 | Kilobecquerels per square cm |