Components kept separate, in the value's unit (literature SCHEMA.md, UNCERTAINTY_CALIBRATION.md): effective = max(sqrt(max(printed, reading, method)^2 + composition^2 + conversion^2), scatter). The method floor is the robust between-study scatter of the method class in ORCHID (calibrated) or a documented prior; printed values and printed uncertainties are unchanged.
Uncertainty budget of the literature values of Ge3Se7
Value
Unit
Printed
Reading
Method (class, basis)
Composition
Scatter
Conversion
Effective
-23.92
kJ/mol-atom
0.005
3.9 (model_calculated, calibrated)
3.9
-22.065
kJ/mol-atom
5.000e-4
3.9 (model_calculated, calibrated)
3.9
Sources
Shanxiong Chen, Jiong Wang, Shangzhao Yu, Biao Hu, Qing Wu, Yong Du, Thermodynamic Modeling of the Ge-X (X = As, Se, S, P) Systems, J. Electron. Mater. 51, 2114-2130 (2022). doi:10.1007/s11664-022-09474-1