Questions, myths and misconceptions about using photoionization detectors


Solvent, fuel and other VOC vapors are pervasively common in many workplace environments. Increased awareness of the toxicity has led to lowered exposure limits, and increased requirements for direct measurement of these dangerous contaminants. Photoionization detector (PID) equipped instruments are increasingly viewed as the best choice for measurement of VOCs at exposure limit concentrations. Unfortunately, there is a lot of misinformation and misunderstanding when it comes to this important monitoring technology.  Understanding the capabilities as well as the limitations of photoionization detectors is critical to interpreting test results and making decisions based on the use of this important atmospheric monitoring technology. 


Attendees of this webinar will be able to answer:


• What are VOCs and why are they dangerous?
• How do you use PID sensors to measure VOC vapors and make decisions?
• What are the differences between PID and LEL sensors?
• What are the most common mistakes users make with PIDs?

Robert E. Henderson

Robert is the President of GfG Instrumentation, Inc., a leading supplier of portable and fixed gas detection, and indoor air quality monitoring products. GfG’s instruments are used in confined space, oil production and refining, industrial hygiene, automotive, hazmat and other atmospheric monitoring applications all over the world. Robert has over 30 years of experience in the design, marketing and manufacture of gas detection instruments. He has been a member of the American Industrial Hygiene Association since 1992. Robert is a past Chairman of both the AIHA Real Time Detection Systems Technical Committee, and the AIHA Confined Spaces Committee. He is also past Chairman of the Instrument Products Group of the International Safety Equipment Association. Robert has a BS in biological science and an MBA from Rensselaer University.