NSF/ANSI 44-2012

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Residential cation exchange water softeners

This edition of the Standard contains the following revisions : Issue 33The component burst pressure test requirement under section 5 was removed from the family of DWTU standards. Issue 34This revision removed the retesting requirement for contaminants that exceed the non-health based advisory concentration.

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Residential cation exchange water softeners

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NSF/ANSI 44-2012

Residential cation exchange water softeners

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