March 2004: Volume 46, Number 3
The Art and Science of Contaminant Reduction Test Methods
by Rick Andrew
Conceptually, contaminant reduction testing under the NSF/ANSI Drinking Water Treatment Unit (DWTU) standards is simple. Contaminated water is introduced into the DWTU system and the product water is analyzed to establish whether the system is effectively reducing the contaminants for which the test is being done...
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