US EPA Method 325 for fenceline air monitoring for benzene & other VOCs
Issued on 29 September 2015, US EPA Method 325 is required to comply with the new US federal regulation CFR 40. Monitoring of volatile organic compounds (VOCs) around the boundary of refineries requires 2-week passive sampling and TD–GC (or GC–MS) analysis.
Although benzene is the primary target compound of Method 325, the sampling and analysis methodology can also be used to determine other VOCs, including other hazardous airpollutants (HAPs) without further method development.
All petroleum refineries seeking compliance with US EPA regulations, together with federal, regional and independent test laboratories, have until 2018 to adhere to Method 325.
Why choose Markes for your Method 325 refinery perimeter monitoring solution?
Complete sampling and analytical package &
full range of accessories available.
- TD instrumentation fully compliant with Method
325 and compatible with any GC or GC–MS system.
- Renowned experts in both sampling &
analysis of VOCs.
- Reduced risk of litigation through complete
chain of custody.
The complete solution for sampling and analysis
For more on how Markes can help you comply with Method 325:
- Download our Application Note 114 – Passive monitoring of benzene and other hazardous air pollutants at refinery perimeters in accordance with US EPA Method 325.
Click on an image for a larger view.