This document describes the operation of active DOAS measuring systems (DOAS = differential optical absorption spectroscopy), calibration procedures and applications in determining gaseous constituents (e.g., NO2, SO2, O3, BTX) in emissions or in ambient air. The performance characteristics stated in this document outline the application scope of this technique, which is documented along with detailed application examples.
VDI 4212 Blatt 1-2008 history
2008VDI 4212 Blatt 1-2008 Remote sensing - Atmospheric measurements near ground with DOAS - Gaseous emissions and ambient air measurements - Fundamentals
2005VDI 4212 Blatt 1-2005 Remote sensing - Atmospheric measurements near ground with DOAS - Measurements of emissions and ambient air - Fundamentals