About Reverse Osmosis Membranes

Reverse Osmosis Membrane

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.