1.2.11. where appropriate, the relative isotope levels of the constituent elements of water, oxygen (160 — 180) and hydrogen (protium, deuterium, tritium);
1.2.11 soveltuvin osin veden, hapen (160—180) ja vedyn (protium, deuterium, tritium) suhteelliset isotooppitasot;EurLex-2 EurLex-2