A 375 ml bottle of liquor in the US and the Canadian maritime provinces is sometimes referred to as a pint and a 200 ml bottle is called a half-pint, harking back to the days when liquor came in US pints, fifths, quarts, and half-gallons.
Flux or Water Flux-Flux or water flux is typically expressed as volume per area per unit of time. Flux is used to express the rate at which water permeates a reverse osmosis membrane. Typical units of measurement are gallons per square foot per day (i.e. GFD or GSFD) or litres per square meter per hour (l/m2/hr). The flux of a RO membrane is directly proportional to temperature and pressure.
the rate of flow of particles, energy, or a fluid, through a specified area, such as that of neutrons (neutron flux) or of light energy (luminous flux) the strength of a field in a given area expressed as the product of the area and the component of the field strength at right angles to the area: magnetic flux, electric flux.