## Wikipedia - Portata (it) mass flow rate, $$q_{\text{m}}$$

https://doi.org/10.1351/goldbook.M03720
Mass of a material crossing a surface divided by the time.
Source:
PAC, 1996, 68, 957. (Glossary of terms in quantities and units in Clinical Chemistry (IUPAC-IFCC Recommendations 1996)) on page 980 [Terms] [Paper]