Historical
NSF/ANSI 53-2007a Addendum 1.0
Addendum 1.0 to Drinking water treatment units - Health effects
Issue 68: The revision made in this issue lowers the maximum contaminant concentration (MCC) for lead for material extraction testing from 0.015 mg/L to 0.010 mg/L in Table 1.
Issue 69:The revision made in this issue clarifies the formulation review requirements and provides consistency between the Drinking Water Treatment Unit Standards and NSF/ANSI 60 and NSF/ANSI 61.
CONTENT PROVIDER
NSF International [nsf]
NSF International [nsf]