Maintenance performed during a site shutdown often takes in gas detection systems, including checking expiry dates and calibration. For some, shutdowns also increase the use of portable and transportable monitors, as fixed systems are being maintained and extra personnel come on site to work. Every year, around this time, we get a significant increase in calls about problems arising during site shutdown. Many of these could have been avoided with a little planning and forethought.
Reactive or “sticky” gases pose additional issues when it comes to gas detection. As their name suggests, they react with many of the surfaces with which they make contact. This becomes a particular problem if the atmosphere to be tested is being “sampled” rather than tested directly.