Since the oxygen sensor contains zirconium dioxide and platinum, the following substances can destroy it:
Heavy metals
Sulphuric compounds
Silicone vapors
Fluorine
NH3 (as of 1000 ppm)
Halogenated hydrocarbons (as of 100 ppm)
Phosphate ester
Chlorine
SF6
Carbons
Salts
Long time in reducing atmosphere
Dust, vibrations, dirt, humidity, oils, greases, furnace cleaning agents, heavy gas oil, pyrolysis gases and silicon oxide (generated when silicones burn in a furnace) decrease the service life of the oxygen sensor.
No responsibility is taken for the completeness of this list.
