| UOM | Category | Short Description | Long Description |
|---|---|---|---|
| MIL | LENGTH | Milliinch | Milliinch |
| MIM | LENGTH | µm | Micrometer |
| MIN | TIME | Minutes | Minutes |
| MIS | TIME | µs | Microsecond |
| MJ | ENERGY | mJ | Millijoule |
| MJK | SPENER | MJ/kg | Megajoules/Kilogram |
| mjm | PRESS | MJ/m3 | Megajoules/Cubic Meter |
| mkG | MAPER | mcg/GJ | Microgram/Gigajoule |
| ML | VOLUME | ml | Milliliter |
| MLK | VPROPO | ml/m3 | Milliliter/cubic meter |
| MLW | AAAADL | ml act.in. | Milliliter Active Ingredient |
| MM | LENGTH | mm | Millimeter |
| MM2 | SURFAC | mm2 | Square millimeter |
| MMA | SPEED | mm/a | Millimeter/year |
| mmB | ENERGY | Mill. BTU | Million British Thermal Units |
| MMG | SPAEQU | mmol/g | Millimole/Gram |
| MMH | SPEED | mm/h | Millimeter/hour |
| MMK | SPAEQU | mmol/kg | Millimole/Kilogram |