Standard Liter Per Minute

The unit standard liters per minute for the volume of gas flow Q, a short slpm or SLM, is a measure of the quantity of molecules, which flows per unit of time and under standard conditions by means of a cross-section.

The unit of the amount of gas flow Q is defined from the standard conditions found to be:

Or in SI units:

The gas flow rate Q, also called gas load, based on the following equation:

Examples:

• The leakage rate of the gas stream that escapes accidentally from a closed system.
• The performance of the pump is often expressed as a volume flow. The values ​​are only meaningful if the prevailing pressure is called.