QTY. 1. TE THERMO ELECTRON CORPORATION ENVIRONMENT INSTRUMENTS DIVISION

QTY. 1. TE THERMO ELECTRON CORPORATION ENVIRONMENT INSTRUMENTS DIVISION NITRIC OXIDE AND TOTAL OXIDES OF NITROGEN. IT DOES THIS BY MEASURING THE INTENSITY OF THE LIGHT PRODUCED BY THE REACTION OF NITRIC OXIDE WITH OZONE. THE INTENSITY IS DIRECTLY PROPORTIONAL TO THE CONCENTRATION OF NO THAT WAS CONVERTED TO NO2 BY THE REACTION.