May 22, 2019

NSF Standards Add PFOA, PFOS Reductions

NSF International had updated standards for the reduction of PFOA & PFOS

NSF International had updated standards for the reduction of PFOA & PFOS

The NSF Intl. joint committee of stakeholders updated two standards to include test methods and other requirements for the reduction of perfluorooctanoic acid (PFOA) and perfluorooctane sulfonate (PFOS).

According to NSF Intl., PFOA and PFOS are some of the most common groundwater contaminants of the perfluoroalkyl substances (PFAS) family of chemicals.

A device must reduce PFOA and PFOS concentrations in water to below the 70 ppt health advisory level set by the U.S. EPA to comply with standards, according to NSF Intl. The devices also must comply with material and physical requirements of NSF/ANSI 53: Drinking Water Treatment Units – Health Effects or NSF/ANSI 58: Reverse Osmosis Drinking Water Treatment Systems.

“Given the number of communities impacted by PFAS contamination of their drinking water sources, this update is very timely,” said Jessica Evans, director of standards development at NSF Intl. “In addition to PFOA and PFOS, the joint committee overseeing NSF/ANSI 53 and NSF/ANSI 58 may soon consider requirements for the reduction of other PFAS chemicals.”

PFOA and PFOS performance requirements were outlined in a protocol called NSF P473: Drinking Water Treatment Units – PFOS & PFOA, according to NSF Intl. 76 different products made by 10 manufacturers have been certified by NSF Intl. to reduce PFOA and PFOS under the NSF protocol.

NSF Intl. facilitates the development and maintenance of NSF/ANSI 53 and NSF/ANSI 58 according to American National Standards Institute (ANSI) policies. According to NSF Intl., this requires consensus from a balanced group of stakeholders from industry, regulatory and user groups, and the consideration of public comments.

NSF Intl. operates a ANSI-accredited certification program in addition to facilitating the development of consensus standards.

Certified products for reduction of PFOA and PFOS by NSF Intl., can be found by visiting NSF's certification listings or by contacting the NSF Intl. consumer information team at [email protected] or +1.800.673.8010.