ISO 19702:2005 specifies methods for the individual analysis of airborne concentrations of carbon monoxide (CO), carbon dioxide (CO2), hydrogen cyanide (HCN), hydrogen chloride (HCl), hydrogen bromide (HBr), nitric oxide (NO), nitrogen dioxide (NO2), and acrolein (CH2CHCHO). Although not specifically defined in ISO 19702:2005, as they were not specifically studied in the SAFIR project, the method presented is suitable for most gaseous species able to be analysed using the FTIR technique, including hydrogen fluoride (HF) and sulfur dioxide (SO2).