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Table 7 Uncertainty budget indexes of simulated CRM 112A/CRM 149 IDMS mixtures

From: Expanded uncertainty modeling of the uranium isotope dilution standards

Quantity SP 1-1 (%) SP 1-2 (%) SP 2-1 (%) SP 2-2 (%) SP 3-1 (%) SP 3-2 (%) SP 4-1 (%) SP 4-2 (%)
R58mix 39.1 4.2 16.7 55.2 8.1 9.1 3.3 1.6
R58Sample 0.7 0.9 4.4 2.4 9.9 9.8 42.1 42.1
δCF58comparator 4.1 6.5 7.3 3.9 6.5 6.3 3.8 3.9
δ R58comparator 56.1 88.3 71.6 38.4 75.5 74.7 50.9 52.4
Expanded uncertainty (k = 2) 0.083 0.066 0.074 0.1 0.072 0.072 0.087 0.085