ANSI/NSF 55(i22)-2007
Ultraviolet microbiological water treatment systems

Standard No.

ANSI/NSF 55(i22)-2007

Release Date

2007

Published By

American National Standards Institute （ANSI)

Scope

To enable point-of-entry (POE) drinking water treatment systems to be covered by NSF/ANSI 61 and to use this universal materials safety standard for POE drinking water treatment units.