Tritium, tritium compounds, mixtures containing tritium in which the ratio of tritium to hydrogen atoms exceeds 1 part in 1000, and products or devices containing any of the foregoing.
Triitium, triitiumiühendid, triitiumi sisaldavad segud, milles triitiumiaatomite suhe vesinikuaatomite suhtes on suurem kui 1:1000, ning neid sisaldavad tooted ja seadmed.