Application Note: Passive Monitoring of Benzene and Other Hazardous Air Pollutants at Refinery Perimeters in Accordance with US EPA Method 325
18 March 2015

This application note describes a stepwise approach to complying with US EPA Method 325 for monitoring volatile organic compounds (VOCs) at refinery perimeters. A range of equipment from Markes International is outlined that allows fully method-compliant deployment of tube-based passive samplers, sample analysis and tube cleaning. All these stages are underpinned by a radio-frequency identification tagging system to ensure a robust chain of custody from field to lab.