Aqua Veritas has set a new standard to substantiate the claims being made by manufacturers of Microbiological Water Purifier devices. “End of Life” testing sets the new standard for personal water filter claims.
Two basic criteria apply:
- The tests must be performed by QUALIFIED INDEPENDENT WATER LABORATORIES. This means a manufacturer cannot perform its own in-house testing.
- The lab testing for all Microbiological Water Purifier devices or personal water purification devices include the following tests:
a. The water filter product must be challenged at least every 25 gallons with all the contaminants the product is said to remove for up to the total gallons/liters being claimed.
For example: If the manufacturer claims the water filter will effectively filter up to 300 gallons, the filter must be challenged every 25 gallons, being re-spiked with the contaminants every 25 gallons and pass the log reduction requirements for up to 300 gallons.
b. The volume of contaminants must be in accordance with the EPA standards for the various micro-organisms being tested.
For example: Various micro-organisms require more of a “log reduction” than others in order to be safe for human consumption.
c. This “End of Useful Life” or “End of Life” should approximate the true capacity of a personal water filtration product.
d. When the water filter device ceases to meet the EPA log reduction standards for the stated contaminants, it is at it’s “End of Life” and no longer safe to use.
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* It should be noted that the HTI family of water filters also removes these pathogens, but they are NOT a mechanical filter. They use, instead, a forward osmosis system.