NSF International evaluated The Dow Chemical Company SFD-2880 UF membrane module for MS2 reduction at four different fluxes, and also with and without a cut fiber, to compare MS2 log reduction under the different scenarios. All tests were conducted in accordance with the U.S. Environmental Protection Agency (EPA) Long Term 2 Enhanced Surface Water ...

This paper discusses the US EPA Membrane Filtration Guidance Manual and the differences involved the selection of modules for challenge testing. The various test methods are compared and contrasted. The conclusion is to harmonize these protocols, offering manufacturers both NSF certification and data to submit for CDPH approval from the same suite...

This paper presents NSF/ANSI 419 Public Drinking Water Equipment Performance - Filtration, a new NSF/ANSI national standard for microfiltration (MF) and ultrafiltration (UF) membrane modules. This new standard establishes performance testing protocols that are consistent with the product-specific microbial challenge testing requirements for Cryptos...