S.01.10.06 Carbon monoxide, CO
S.01.10.07 Carbon dioxide, CO2
S.01.10.08 Nitrous oxides NOx
S.01.10.09 Volatile organic compound, VOC
S.01.10.11 Sulphur dioxide, SO2
S.01.10.12 Ammonia, NH3
S.01.10.13 Methane, CH4, natural gas, biogas
S.01.10.17 Ethylene, C2H4
S.01.10.17 Ethylene, C2H4
S.01.10.22 Sulfur hexafluoride, SF6
S.01.10.26 Refrigerants
S.01.10.29 Combustible (flammable) gases
S.01.10.34 Alcohol, e.g. Ethanol, Methanol, Propanol, etc.
S.02.24 Fibre-optic sensor
S.02.28 Infrared, IR measuring cell
S.02.29 Nondispersive infrared sensor (NDIR sensor)
S.03.17 Optical component
S.03.19 Optical mirror, reflector
S.03.30 Hermetically sealed housing
S.03.44 Further sensor components and accessories
S.04.05 Coating systems, e.g. thermal coater
