Calibration gas mixtures based on nitrogen or air (Class 1 and Class 2).
- Nitrogen-based calibration gas mixtures (Class 1 and 2): contain components such as argon (Ar), hydrogen (H2), helium (He), oxygen (O2), methane (CH4), propane (C3H8), carbon monoxide (CO), and carbon dioxide (CO2) in nitrogen (N2) .
- Air-based calibration gas mixtures (Class 1 and 2): contain components such as argon (Ar), hydrogen (H2), helium (He), oxygen (O2), methane (CH4), propane (C3H8), carbon monoxide (CO), and carbon dioxide (CO2) in air.