Abstract

This report describes the results of the acceptance procedure of the 49 ozone analyzers, model 49W, based on the UV-photometric absorption technique, supplied by Thermo Environmental Instruments. The acceptance procedure is an adapted version of "Perchar". These instruments are the replacements for the original Philips, model PW9771 monitors, based on the chemiluminescent reaction of ozone and Rhodamine-B, in the "Landelijk Meetnet Luchtkwaliteit". (National Air Quality Monitoring Network)