... be used in reverse osmosis (RO), nano-filtration (NF) and ultra-filtration (UF) system. 4>. It is compatible with ... all of the leading RO membranes, such as the Dow ... BaSO4, CaF2, SiO2, Fe2O3, etc. 2.Make the system don't scale even if the CaCO3 LSI is up ... , the dosage is 1 -3 mg/L in RO system. Our tecnician can help you to calculate the exact ...