In this technical blog post, we provide the details on the differences between PFAS methods, including EPA 537, ASTM D7979 and EPA 537 Modified.
EPA 1633, PFAS, ASTM D8421, MUR
The analysis of PFAS by EPA 1633A and ASTM D8421 is part of the U.S. EPA’s Methods Update Rule (MUR) Rule 22. The action will promulgate EPA into 40 CFR Part 136. Also part of this action, PFAS method ASTM D8421 is proposed to be codified.
