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TFC Membrane *Nominal Rejection Characteristics of Reverse Osmosis Membranes
ION
% Rejection
ION
% Rejection
Calcium
95 - 98
Bromide
93 - 96
Sodium
94 - 98
Phosphate
97 - 98
Magnesium
95 - 98
Cyanide
90 - 95
Iron
97 - 98
Sulfate
97 - 98
Potassium
94 - 97
Thiosulfate
97 - 98
Manganese
97 - 98
Silicate
94 - 96
Aluminum
97 - 98
Silica
85 - 90
Copper
97 - 98
Nitrate
92 - 95
Nickel
97 - 98
Boron
60 - 70
Cadmium
95-98
Borate
40 - 70
Silver
95 - 97
Fluoride
93 - 95
Zinc
97 - 99
Polyphosphate
98 - 99
Mercury
95 - 97
Orthophosphate
98 - 99
Hardness Ca&Mg
95 - 98
Chromate
90 - 97
Radioactivity
95 - 98
Bacteria
99+
Chloride
90 - 95
Lead
96 - 98
Ammonium
85 - 95
*The above percent of rejection is for reference only and not to be construed as any guarantee since the chemistry, temperature and TDS are not constant in each water supply.
