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.
Heat flux. Heat flux or thermal flux is the rate of heat energy transfer through a given surface per unit time. The SI derived unit of heat rate is joule per second, or watt. Heat flux density is the heat rate per unit area. In SI units, heat flux density is measured in [W/m2].