Differences between CEN/TS 17337:2019 and TGN M22: Stationary Source Emissions Monitoring using Portable Fourier Transform Infrared (FTIR) Spectroscopy

This document discusses measurement method CEN/TS 17337:2019 ‘Stationary source emissions - Determination of mass concentration of multiple gaseous species - Fourier transform infrared spectroscopy’. Significant differences of CEN/TS 17337 compared to TGN M22 ‘Measuring stack gas emissions using FTIR instruments’ are highlighted, along with an itemised list of all differences. Also discussed are: the background to the elaboration of CEN/TS 17337; the documents positioning in the overall CEN/TC 264 ‘Air Quality’ standardisation framework; the documents relationship with EN 16429:2021 ‘Stationary source emissions — Reference method for the determination of the concentration of gaseous hydrogen chloride (HCl) in waste gases emitted by industrial installations into the atmosphere’. Lastly, details are provided for selecting test gases for the Check Gas Approach found in CEN/TS 17337 for Protea’s atmosFIRt.