Stable isotope working standard set of 5, water

Working Standard 1 δ 2H (V-SMOW)= -161.3‰ ± 0.5 δ 18O (V-SMOW)= -20.72‰ ± 1.5 δ 17O (V-SMOW)= -10.93‰ ± 1.5 Working Standard 2 δ 2H (V-SMOW)= -120.2‰ ± 0.5, δ 18O (V-SMOW)= -16.13‰ ± 1.5 δ 17O (V-SMOW)= -8.49‰ ± 1.5 Working Standard 3 δ 2H (V-SMOW)= -78.0‰ ± 0.5, δ 18O (V-SMOW)= -10.76‰ ± 1.5 δ 17O (V-SMOW)= -5.63‰ ± 1.5 Working Standard 4 δ 2H (V-SMOW)= -48.7‰ ± 0.5, δ 18O (V-SMOW)= -7.63‰ ± 1.5 δ 17O (V-SMOW)= -3.97‰ ± 1.5 Working Standard 5 δ 2H (V-SMOW)= -10.5‰ ± 0.5, δ 18O (V-SMOW)= -3.00‰ ± 1.5 δ 17O (V-SMOW)= -1.52‰ ± 1.5