The Kold Ster-il ® Filtration System will sorb or
barrier restrict the following solutes or particulates from freshwater:

Lead : 62.45% of 116.85 ng/ml flow rate 3.8 gpm @ 40 psig.
(P b) EPA Method 7421
Plus: 96% of the ramining lead. Flow rate 0.60 gpm.
NSF Standard 53b (heavy metals testing).
Cadmium : 63.27% of 79.44 ng/ml flow rate 3.8 gpm @ 40 psig.
(Cd) EPA Method 7131
Plus: 91% of the remaining cadmium. Flow rate 0.60 gpm.
Mercury : 63.74% of 122.86 ng/ml flow rate 3.8 gpm @ 40 psig.
(Hg) EPA Method 7471.
Plus 93% of the remaining Mercury. Flow rate 0.60 gpm.
NSF Standard 53b (heavy metals testing)
V.O.C.'s : 74% of 347 ng/ml (level:90 ng/ml) EPA Permits 100ng/ml.
Method: Microextraction into pentane prior to GC/ECD.
Reference: Journal of Applied Toxicology, Vol. 2, No. 3, 1982.
Plus 82% Removal under NSF Standard 53b (cloroform surrogate testing).
Additional : Presently Standards are not established by NSF, International for chemical filtration
Heavy media. EPA Standards have not been lowered below part-per-million (mg/L) level.
Metals
Copper : *47% of 718 ng/ml (20 seconds) flow rate 3.8 gpm @ 40 psig.
(Cu) EPA Method 7210.
NSF Standard - not presently established.
Iron : 21.5% of 272.14 ng/ml (34 seconds) flow rate 3.8 gpm. @ 40 psig.
(Fe) EPA Method 7359
NSF Standard - not presently established.
Zinc : *17.14% of 242.10 ng/ml (34 seconds) flow rate 3.8 gpm @ 40 psig.
(Zn) EPA Method 7950.
NSF Standard - not presently established.
*Note : If Copper & Zinc occur together in water, the synergistic effect enhances filtration as follows: Copper 61.8% of 211.73 ng/ml. Zinc 84.7% of 140 ng/ml. Flow rate 3.8 gpm @ 40 psig.
Giardia Cryptosporidium 99.9% retention of live Cryptosporidium Parvum Cysts.
Tested according to U.S. EPA Guide Standard & Protocol for testing Microbilogical Purifiers.