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 isotopes2832283230283230Chapter 28Copy pageThiosulphatesDescriptionSulphites; thiosulphates : ThiosulphatesWas this page helpful?YesNoPrevious283220Other sulphitesNextDisodium sulphate283311