Historical
NSF/ANSI 330-2012
Glossary of drinking water treatment unit terminology
This edition includes multiple revisions to the Standard including:a statement has been added to clarify the use of undated references;all definitions specific to NSF/ANSI 222, which is now maintained by the Joint Committee on Recreational Water Facilities, have been removed from this Standard; the definitions of “rated service cycle” and “service cycle” have been revised; andthe definition of “unit void volume” has been revised.
NSF International [nsf]
