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Current IssueOctober 30, 2014
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February 2005: Volume 47, Number 2

Conformance to the NSF/ANSI DWTU Standards of Complete Systems Versus Components
by Rick Andrew

The concept of a certified drinking water treatment unit (DWTU) system is not difficult to grasp. The system is a complete product designed to treat residential potable water. Manufacturers of these systems have operations spanning a wide range in terms of their level of vertical integration...

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For earlier columns in this category, click on the link below or hit the 'List All' button.
Cyst Reduction, Turbidity Reduction, Nominal Particulate Reduction, Class I  January 2005
A New Standard for Shower Filters  December 2004
Water Treatment Technologies: A Bottled Water Perspective  November 2004
Minimum Performance Requirements, Minimum Service Flow: Requirements that must not be minimized!  October 2004
Refrigerator Filters—Unique Products, Unique Certification  September 2004
Softener Certification -- Standard 44 Capacity Testing  August 2004
Structural Integrity and the DWTU Standards  July 2004
Lead and the Corrosion It Leaves Behind -- What the Washington, D.C., Case Taught Us  June 2004
How You Can Have an Impact on DWTU Standards  May 2004
Helping the Consumer Make an Informed Decision  April 2004
The Art and Science of Contaminant Reduction Test Methods  March 2004
Witness for Certification -- Product Testing Is Controlled, But Not Confined  February 2004