On February 14^th, Nick Nigro, Pace® PFAS Product Manager, along with other leaders of ASTM subcommittee F15.81 on Per-and Polyfluoroalkyl Substances, held a webinar discussing the what, why, and how of quantifying PFAS in Consumer and Related Products. Among many topics, the team addressed the challenge created by the varying definitions of PFAS used by the states when crafting legislation. This comes up frequently in conversations with our manufacturing customers, so I wanted to share some of the highlights from the webinar.

Even as EPA Draft Method 1633 goes through revisions, it’s already become the go-to method for many regulatory programs. For example, the U.S. EPA strongly encourages Draft Method 1633 for NPDES (National Pollutant Discharge Elimination System) permitting. The Department of Defense calls for Draft Method 1633 when testing AFFF (Aqueous Film-Forming Foam) and F3 (Fluorine-Free Foam) for PFAS. At least twelve states have even updated their lab accreditation programs to include Draft Method 1633.