Fire safety testing is not limited to evaluating flame spread, heat release, or smoke density. Toxic gases released during combustion can pose serious risks to human health, particularly in enclosed environments such as railway vehicles, ships, tunnels, and buildings.<\/p>
Common hazardous combustion gases include carbon monoxide (CO), carbon dioxide (CO\u2082), hydrogen cyanide (HCN), and hydrogen chloride (HCl). Accurate identification and measurement of these gases are essential for understanding the potential toxicity of fire effluents.<\/p>
Fourier Transform Infrared (FTIR) spectroscopy provides an effective solution for analysing multiple gas components during fire testing.<\/p>\n\n
ISO 19702:2024<\/strong>, Sampling and analysis of toxic gases and vapours in fire effluents using Fourier Transform Infrared (FTIR) spectroscopy, establishes a standardised approach to measuring gaseous combustion products.<\/p> The standard addresses important aspects of FTIR measurement, including gas sampling, calibration, spectral analysis, and measurement quality.<\/p> FTIR technology identifies gases through their characteristic infrared absorption spectra, enabling the simultaneous analysis of multiple compounds.<\/p> Compared with conventional single-gas detection methods, FTIR offers several advantages:<\/p> Reliable results depend on appropriate calibration, sampling conditions, and instrument configuration.<\/p>\n\n FTIR gas analysis is relevant to several international fire safety testing frameworks.<\/p> This standard establishes fire behaviour requirements for materials and components used in railway vehicles. Toxic gas analysis supports applicable smoke toxicity assessments, helping evaluate potential hazards in passenger compartments.<\/p> Part 2 addresses smoke and toxicity testing for marine applications. Gas analysis contributes to evaluating combustion products from materials used in enclosed shipboard environments.<\/p> These standards evaluate halogen acid gas emissions and the acidity and conductivity of gases released during cable material combustion. FTIR analysis can provide complementary information about individual gas concentrations but does not replace the prescribed IEC testing methods.<\/p>\n\nApplications in International Fire Testing Standards<\/h3>\n\n
EN 45545-2 \u2014 Railway Fire Safety<\/h4>
IMO 2010 FTP Code \u2014 Marine Fire Safety<\/h4>
IEC 60754-1 and IEC 60754-2 \u2014 Cable Combustion Gas Testing<\/h4>
ZY6282B FTIR Gas Analyser for Fire Toxicity Testing<\/h3>\n\n