| Abbreviation | Definition |
|---|---|
| LPF | Liters Per Flush |
| LPH | Litres Per Hour |
| LPI | Lines Per Inch |
| LPM | Laughs Per Minute |
| LPM | Lines Per Minute |
| LPM | Liter Per Minute |
| LPP | Lines Per Page |
| LPS | Lines Per Second |
| LPW | Lessons Per Week |
| LQG | Liquid Grams |
| LQT | Liquid Quart |
| LS | Light Seconds |
| LSI | Large Spark Ignited |
| LT | Long Ton |
| LTD | Life To Date |
| LTK | Load-Tonne-Kilometre |
| LTPD | Long Tons Per Day |
| LU | Log Unit |
| LUP | Lead Units Of Pressure |
| LVD | Light Visible Distance |