Deuterium and other compounds of deuterium; hydrogen and compounds thereof, enriched in deuterium; mixtures and solutions containing these products [euratom] (excl. heavy water "deuterium oxide")
Isotopes and inorganic or organic compounds of such isotopes, whether or not chemically defined (excl. deuterium, heavy water "deuterium oxide" and other compounds of deuterium, hydrogen and compounds thereof, enriched in deuterium, and mixtures and solutions containing these products, and boron enriched in boron10 and lithium enriched in lithium6 and their compounds, and helium3)