Home > Services We Offer > Services We Offer by Method Group > PFAS - Including PFOA and PFOS > EPA Announces a New Method for Drinking Water - EPA Method 533
EPA Announces a New Method for Drinking Water - EPA Method 533

EPA Announces a New Method for Drinking Water - EPA Method 533

On December 19, 2019,  U.S. EPA announced the new validated method for PFAS in Drinking Water, EPA Method 533.

EPA Method 533 measures up to 29 compounds, which is 11 more compounds than EPA Method 537.1 currently supports.  The new method focuses on the short chain PFAS Compounds, which are those which have carbon lengths of C4 to C12. EPA Method 533 also incorporates isotope dilution which can minimize sample matrix interference as well as improve data quality.

Eurofins participated in the method validation study for EPA Method 533. Eurofins will seek all necessary certifications /accreditations which will be required to support EPA Method 533 as soon as the certifications are offered by various states and other agencies.

EPA Method 533  does compliment EPA Method 537.1, which was published in November 2018.  A comparison of the method compound list is provided below.

 Analyte  

 Abbreviation  

Method
533  

Method
537.1  

11-Chloroeicosafluoro-3-oxaundecane-1-sulfonic acid  

 11Cl-PF3OUdS  

 x  

 x  

9-Chlorohexadecafluoro-3-oxanonane-1-sulfonic acd  

 9Cl-PF3ONS  

 x  

 x  

 4,8-Dioxa-3H-perfluorononanoic acid  

 ADONA  

 x  

 x  

Hexafluoropropylene oxide dimer acid  

 HFPO-DA  

 x  

 x  

Perfluorobutanesulfonic acid  

 PFBS  

 x  

 x  

Perfluorodecanoic acid  

 PFDA  

 x  

 x  

Perfluorododecanoic acid  

 PFDoA  

 x  

 x  

Perfluoroheptanoic acid  

 PFHpA  

 x  

 x  

Perfluorohexanoic acid  

 PFHxA  

 x  

 x  

Perfluorohexanesulfonic acid  

 PFHxS  

 x  

 x  

Perfluorononanoic acid  

 PFNA  

 x  

 x  

Perfluorooctanoic acid  

 PFOA  

 x  

 x  

Perfluorooctanesulfonic acid   

 PFOS  

 x  

 x  

Perfluoroundecanoic acid  

 PFUnA  

 x  

 x  

1H,1H, 2H, 2H-Perfluorohexane sulfonic acid   

 4:2FTS  

 x  

   

1H,1H, 2H, 2H-Perfluorooctane sulfonic acid   

 6:2FTS  

 x  

   

1H,1H, 2H, 2H-Perfluorodecane sulfonic acid  

 8:2FTS  

 x  

   

Nonafluoro-3,6-dioxaheptanoic acid  

 NFDHA  

 x  

   

Perfluorobutanoic acid  

 PFBA  

 x  

   

Perfluoro (2-ethoxyethane) sulfonic acid  

 PFEESA  

 x  

   

Perfluoroheptanesulfonic acid  

 PFHpS  

 x  

   

Perfluoro-4-methoxybutanoic acid  

 PFMBA  

 x  

   

Perfluoro-3-methoxypropanoic acid 

 PFMPA  

 x  

   

Perfluoropentanoic acid  

 PFPeA  

 x  

   

Perfluoropentanesulfonic acid  

 PFPeS  

 x  

   

N-ethyl perfluorooctanesulfonamidoacetic acid  

 NEtFOSAA  

   

 x  

N-methyl perfluorooctanesulfonamidoacetic acid  

 NMeFOSAA  

   

 x  

Perfluorotetradecanoic acid  

 PFTA  

   

 x  

Perfluorotridecanoic acid  

 PFTrDA  

   

 x  

To access EPA Method 533 click here.  To access EPA Method 537.1 click here.

How Can Eurofins Help You?

Eurofins understands the needs of clients undertaking sampling events to identify and monitor emerging contaminants such as PFAS. We have designed a program that leverages our 30 years of experience in LC/MS/MS technology to provide a high-quality and cost effective solution to your analytical testing needs.

Eurofins offers the nation's largest LCMSMS capacity dedicated to PFAS testing, with over 35 PFAS related compounds at detection limits well below state and federal screening levels. Our laboratories support methods 537.1, ISO25101, 537M and PFAS by QSM Table B15, with all the necessary validation data to support the precision and accuracy of our methodology.

In addition, Eurofins has successfully implemented an application of Method 537 with isotope dilution for use on more complex matrices, such as groundwater, soil, tissue, and sediment, and has incorporated replacement compounds such as GenX, DONA and F-53B into this analysis. We also support specialty testing such as PFAS in source air emissions and the production of TOP (Total Oxidizable Precursors) Assay data.

Quality encompasses more than just error-free and defensible data; our industry-leading program also incorporates the technical guidance and expertise of our Experts to ensure that we understand your analytical needs and accomplish your data quality objectives.

Please Contact Us for More InformationAsk our PFAS Experts or Request a Quote.

Click here (PFAS brochure) for a copy of our brochure