The enclosed ballot contains multiple revisions to section 5 of NSF/ANSI 419 including:
- addition of an example test apparatus for challenge testing bags and cartridge filters; and
- language to clarify the test method.
Revision 2 incorporates a comment received during the revision 1 ballot to change several recommendations to requirements (i.e., replacing the word “should” with “shall”). The revised draft also includes few additional clarifications suggested by the original issue proponent. Revision 2 changes are highlighted in yellow. |