ANSI/NSF 44(i29)-2007
Residential cation exchange water softners

Standard No.

ANSI/NSF 44(i29)-2007

Release Date

2007

Published By

American National Standards Institute （ANSI)

Scope

To clarify the formulation review requirements and provide consistency between the Drinking Water treatment Unit Standards and NSF/ANSI 60 and NSF/ANSI 61.