Historical
NSF/ANSI 55-2019
Ultraviolet Microbiological Water Treatment Systems
This Standard covers UV microbiological water treatment systems and components for point-of-use (POU) and point-of-entry (POE) applications. This Standard covers systems which use UV radiation within the range of 240 nm to 300 nm inclusive. Systems are intended to be used under the following specific conditions.
NSF International [nsf]