mlhr

mLhr is a nonstandard abbreviation for milliliters per hour, a unit of volumetric flow rate used to express the rate at which a liquid is delivered. The more common notation is mL/h; some documentation or devices may display it as mLhr without the slash. It describes how many milliliters pass per hour.

Conversions: 1 mL/hr equals 0.001 L/hr, equals about 0.0167 mL/min, and equals 0.024 L/day.

Applications: In medicine, infusion pumps set rates in mL/hr to administer intravenous fluids, medications, or nutrition; in laboratories, it can specify the flow of liquids through analytical or processing systems.

Notes: The unit is not part of the SI; the preferred SI-consistent unit is L/h. In clinical settings, consistency in notation is important to avoid dosing errors; software or forms that use mL/hr should be understood as milliliters per hour, not milliliters per second.

See also: mL/h, infusion pump, flow rate.