Phosgene Indicator Badge

The Compur phosgene dosimeter badge is a reliable and very specific method to measure the phosgene exposure in phosgene producing and processing units. For a measurement the multiple – use Badge holder with clip is furnished with one indicator paper and one diffusion paper. The indicator paper changes from yellow to brick red depending on phosgene concentration and time.
The total dose can be evaluated easily and accurately by means of a colour comparator chart.
The chemicals on the COCl2 Badge are ultravilet light – sensitive.If the badge has been exposed to high concentrations of COCl2, the color intensity may degrade over time. Exposing the badge to Ammonia fumes (NH3) will restore the original color.