ISGOR vs KNM 40Ca 48Ca 68Ni 90Zr 116Sn 144Sm 208Pb 215 31.41 31.39 28.94 27.42 25.69 23.65 21.36 228.8 32.11 31.94 29.93 28.49 26.86 24.28 22.53 227.5 31.87 31.62 29.60 28.21 26.57 24.42 22.29 216.7 30.35 30.64 28.35 27.00 25.33 23.14 21.10 255 31.13 30.32 28.17 26.82 25.18 23.24 20.91 258.1 34.17 34.84 32.70 31.06 29.65 27.03 24.80 247.9 33.74 33.08 31.57 29.92 28.59 25.60 23.45 255.7 34.87 34.24 32.41 31.17 29.76 26.40 24.08 234 29.89 29.78 27.36 25.89 24.34 22.47 20.31 222 29.16 29.10 26.71 25.22 23.78 21.93 19.80 233.81 29.94 29.62 27.18 25.78 24.19 22.40 20.12 254.6 35.28 34.55 33.10 31.68 33.64 27.13 24.89 241.4 33.88 33.57 31.44 30.10 30.90 25.74 23.54 229.9 31.76 31.46 29.72 28.26 26.76 24.56 22.63 229.9 31.90 31.57 29.79 28.36 26.84 24.53 22.65 229.8 32.44 32.60 30.42 28.88 27.25 24.59 22.63 230.9 32.22 32.61 30.58 29.19 27.56 24.78 22.68 223.34 30.04 29.25 27.82 25.76 24.33 22.71 20.41 222.3 30.04 29.78 27.60 26.04 24.53 22.71 20.26 210.78 32.44 32.45 29.95 28.36 28.12 23.98 21.92 230 30.59 30.74 28.43 26.96 26.00 23.34 21.17 225.65 33.18 31.22 29.79 28.21 27.84 24.66 22.33 218.11 30.41 30.95 28.59 27.40 26.06 23.71 21.72 222.2 32.02 32.24 29.89 28.20 27.10 24.20 22.26 236.16 28.57 28.30 26.09 24.57 23.12 21.46 19.34 235.73 28.57 28.42 26.13 24.65 23.21 21.54 19.40 235.74 28.65 28.44 26.16 24.68 23.14 21.57 19.40 235.7 30.59 30.17 28.14 26.53 24.99 23.22 21.11 234.91 30.35 30.35 28.14 26.61 25.06 23.13 21.09 238.95 28.62 28.21 26.05 24.48 22.96 21.38 19.26 238.95 28.49 27.91 25.85 24.33 22.88 21.38 19.16 201.76 28.45 29.02 26.49 25.23 23.79 21.70 19.66 233.33 31.81 32.01 29.86 28.13 26.63 24.24 22.46 Experiment 23.10 23.30 19.80 19.60 Error 0.30 0.80 0.50 0.50