Normalized Flux definition
Normalized Flux means the filtration rate of a membrane filtration system expressed as flow per unit of membrane area, such as gallons per square foot per day, at a given reference temperature for monitoring system productivity independent of changes in water temperature. For microfiltration, ultrafiltration, and membrane cartridge filtration, 20 degrees Celsius is used for normalization. For nanofiltration and reverse osmosis, 25 degrees Celsius is used for normalization.