First Need® Certification to EPA Microbiological Guide Standard
Techmemocert
General Ecology® Water Purifiers Certified to EPA Guide Standards
Seagull® IV & Nature Pure® UltrafineT Water Purifiers
First Need® Portable Water Purifiers
Three
series of tests were conducted by the independent laboratory at the
University of Arizona to document removal of microbiological
contaminants according to current EPA Guide Standard and Protocol for
Testing Microbiological Water Purifiers.
The purifiers were operated
for 100% of their rated capacity and challenged periodically with high
concentrations of bacteria, cysts and virus. At the 60% and 75% test
points the units were challenged with "worst case" water according to
protocol. Additionally, the systems were allowed to stagnate for 48
hours after the 50%, 75% and 100% test points to demonstrate that no
microbiological growth through the cartridge occurred.
% Reduction (geometric average of 3 units)
|
|
Bacteria |
Cysts |
Virus
Polopviurs
type I |
Test
Point
% of Rated Capacity |
Klebsiella
terrigena |
Cryptosporidium |
Rotavirus
SA-11 |
| start |
>99.9999 |
>99.9 |
>99.99 |
| 25% |
>99.9999 |
>99.9 |
>99.99 |
| 50% |
>99.9999 |
>99.9 |
>99.99 |
| 48
hr. stagnation |
NG |
NG |
NG |
| *60% |
>99.9999 |
>99.9 |
>99.99 |
| *75% |
>99.9999 |
>99.9 |
>99.99 |
| 48
hr. stagnation |
NG |
NG |
NG |
| *90% |
>99.9999 |
>99.9 |
>99.99 |
| *100% |
>99.9999 |
>99.9 |
>99.99 |
*= Worst case
challenge water.
NG = No Growth |
|
|
|
|