EPA Method 533 Testing — Laboratories & Overview
EPA Method 533 is a drinking water method for determining selected per- and polyfluoroalkyl substances using isotope dilution liquid chromatography tandem mass spectrometry.
When is it used?
- Drinking water PFAS monitoring
- Regulatory compliance sampling
- Treatment performance verification
Sample considerations
- Use the laboratory's supplied bottles and preservation; PFAS contamination during sampling is a common problem.