The technical advisory describes how laboratories should quantitate PFOA using Method 537 to account for linear and branched isomers.
You will need Adobe Reader to view some of the files on this page. See EPA’s About PDF page to learn more.- Technical Advisory for PFOA using EPA Method 537 Rev. 1.1 (PDF)(4 pp, 123 K, September 2016, 815-B-16-021)