NSF/ANSI Standard 46 - Evaluation of Components and Devices ...

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NSF/ANSI Standard 46 • Ozone generation devices – Performance and evaluation • Ozone system life test – Criteria (both 46 & 385) » No visible signs of damage or structural change that may adversely affect operation of any component of the system
NSF/ANSI Standard 46 • Ozone generation devices – Performance and evaluation • Fecal coliform deactivation test – Grab samples for fecal coliform testing shall be collected at the discharge of the mixing tank during the Ozone system life test – Collection times varied day to day over 30-day test with 50% (reduced to 25% in 385) taken during hydraulic loading periods – One sample/day which has an influent fecal count within the specified range – Testing continues until 30 samples have been collected
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NSF/ANSI Standard 46 - Evaluation of Components and Devices ...

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