HS CodesVI · Products of the chemical or allied industries28 · Inorganic chemicals; organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes2804280440280440Chapter 28Copy pageOxygenDescriptionHydrogen, rare gases and other non-metals : OxygenWas this page helpful?YesNoPrevious280430NitrogenNextBoron; tellurium280450