NSF/ANSI Standard 46 - Evaluation of Components and Devices ...
NSF/ANSI Standard 46 - Evaluation of Components and Devices ...
NSF/ANSI Standard 46 - Evaluation of Components and Devices ...
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<strong>NSF</strong>/<strong>ANSI</strong> <strong>St<strong>and</strong>ard</strong> <strong>46</strong><br />
• Ultraviolet disinfection devices<br />
– Performance <strong>and</strong> evaluation<br />
• End <strong>of</strong> UV lamp life disinfection test<br />
– Evaluates disinfection capability <strong>of</strong> the device with the UV<br />
lamp output adjusted to 70% <strong>of</strong> initial<br />
– UV lamp output is measured after sampling on day 90 – if<br />
the measurement is 70% or less <strong>of</strong> initial output, no end <strong>of</strong><br />
lamp life test is required<br />
– If the measurement is greater than 70% lamp output is<br />
adjusted to 70%<br />
– Run in a 2-day period following the 90 day disinfection test<br />
under same test conditions, collecting samples 30 minutes<br />
after introduction <strong>of</strong> challenge water on day 2<br />
• 385 – Test omitted
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