Volumetric Flow Rate, (also known as volume flow rate, rate of fluid flow or volume velocity) is the volume of fluid which passes through a given surface per unit time.
Applicable units are those of quantitykind:VolumeFlowRate
http://en.wikipedia.org/wiki/Volumetric_flow_rate
https://cdd.iec.ch/cdd/iec61987/iec61987.nsf/ListsOfUnitsAllVersions/0112-2---62720%23UAD239
Volumetric Flow Rate, (also known as volume flow rate, rate of fluid flow or volume velocity) is the volume of fluid which passes through a given surface per unit time.
$q_V = \frac{dV}{dt}$, where $V$ is volume and $t$ is time.
http://www.iso.org/iso/catalogue_detail?csnumber=31889