Breaking News: SGS Expands Capacity on the Total Oxidizable Precursor (TOP) Assay

As we continue to strategically update our offering, we have made a significant expansion in capacity at our New Jersey laboratory with the integration of the Total Oxidizable Precursor (TOP) assay. The expansion includes a TAT of 15-20 days, complementing our market-leading 1633 TAT in New Jersey. We’re prepared to meet the demands of even the most time-sensitive projects.  

With PFAS testing becoming more essential and ever-changing regulations, our commitment to updating and validating new methods ensures you can make important environmental decisions confidently, backed by the latest advancements and industry standards.  

The TOP assay is a valuable forensic tool that unlocks crucial information on unknown PFAS precursors and expands our understanding of PFAS at contaminated sites, waste streams and more. One major concern with the TOP assay is achieving high technical standards and reducing uncertainty. Our long network excellence with PFAS analysis and TOP, and our development of EPA 1633 ensures that TOP and pre-TOP target PFAS data are reported utilizing the industry-leading 1633 standard method procedures. We incorporate the right labeled standards and isotope dilution ensuring best in class accuracy and reliability. 

The SGS New Jersey laboratory serves as a crucial bridge between development excellence at SGS AXYS and the growing commercial PFAS needs in the market. Our New Jersey laboratory is now the premier access point for commercial PFAS clients, catering to local testing needs. Our long experience and technical excellence on the TOP assay from the SGS AXYS laboratory is now translated to industry-leading TAT and service in New Jersey.  

The incorporation of the TOP assay marks the most recent step in our rapid PFAS evolution with fluorine (AOF, EOF, TF) development already underway and analysis by EPA Method 1621 coming soon!  

In addition, our New Jersey laboratory offers a comprehensive menu of methods to meet a wide range of testing requirements. Our existing methods include 533, 8327, 8421 and 1633.  

We remain committed to setting the standard for excellence in environmental testing and are excited about what this expanded capability means for clients now and in the future. 

Questions about our leading PFAS capabilities? Contact our team at: