Assertion: tritium | /r/CapableOf | decay to 3 he
Facets:
value: gradually
type: MANNER
Source sentences:
text: 5.6 ´ 10 7 GBq (1.5 MCi) of tritium gas are used for transportation and storage and must be constructed to withstand the additional pressure which will build up as tritium gradually decays to 3 He.