Developed for the Petroleum Refinery Residual Risk and New Source Performance Standard (NSPS), EPA Method 325B is designed to monitor Benzene and select Volatile Organic Compounds around refinery fencelines by utilizing passive sampling tubes.  These tubes are simply hung and exposed to the environment for a period of time before being sent to the laboratory for analysis by Thermal Desorption – Gas Chromatography with Mass Spectrometry (TD-GC/MS).

While just recently published in the Federal Register on December 1, 2015, Enthalpy Analytical has been analyzing Method 325B samples for Benzene monitoring since 2013 and we have participated in numerous round-robin studies.  We were there from the beginning and have assisted the EPA with development and validation of Method 325B.  Because of our unique involvement with this method, we are on the cutting edge of this technology and are still working tirelessly to refine our best in class analytical approach and data delivery  for Method 325B.

Not sure where to start? Let us help you design and execute your fenceline monitoring program.  Contact us today for assistance implementing your new ambient program or modifying your existing one and we’ll put our experience to work drafting your QAPP and training for your personnel.

With Enthalpy on your team, your program starts with a solid foundation and understanding of EPA Method 325B.