La référence de la mesure est le Vienna - Standard Mean Ocean Water (SMOW).
Ministère de l'Environnement
Ohsumi T., Fujini H., 1986. Isotope exchange technique for preparation of hydrogen gas in mas spectrometric D/H analysis of natural waters. Analytical Sciences, vol.2, 489-490" et "Horita J., Veda A.,Mizukami K., Takatori I., 1989. Automatic Delta D and Delta 18O
analyses of multiwater samples using H2 and CO2 - water equilibration methods with a common equilibration set-up. Appl. Radiat. Isot., Vol.40, N°9, 801-805