The proposed draft revises the usage pattern specified for nonplumbed pour-through-type batch treatment systems when no manufacturer’s recommended use pattern is given. This revision will be reflected in all applicable elective performance claims in NSF/ANSI 42 and 53.
Draft 3 adds revisions to 7.2 for bacteriological performance and 7.4 for nominal particulate reduction (85%) and revises how a batch is defined for chemical reduction testing. |