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 />
• UV disinfection test<br />
– Influent <strong>and</strong> effluent sampling - <strong>46</strong><br />
» Except for fecal coliform, all samples will be flowproportional,<br />
24-hour composites obtained during<br />
periods <strong>of</strong> system dosing<br />
» Daily fecal values shall be the geometric mean <strong>of</strong><br />
three 1-L grab samples<br />
» Samples shall be collected starting the 15 th day <strong>of</strong> the<br />
test <strong>and</strong> at 15-day intervals during the 90-day test<br />
– 385 – two, 1-L grabs, 30 min. after start <strong>of</strong> each<br />
loading period (17 total each loading period for<br />
test)
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