Table 6 List of standard uncertainty components.
Standard uncertainty | Source | Type | Value (°C) | Distribution | Degrees of freedom |
|---|---|---|---|---|---|
u1.1 | Repeatability of the test thermocouple | A | 0.065 | t-distribution | 3 |
u1.2 | Electrical measuring equipment | B | 0.017 | Rectangular distribution | 50 |
u1.3 | Switching unit effect | B | 0.010 | Rectangular distribution | 50 |
u1.4 | Measurement position | B | 0.050 | Rectangular distribution | 50 |
u1.5 | Thermocouple inhomogeneity | B | 0.050 | Rectangular distribution | 50 |
u2.1 | Repeatability of the reference thermocouple | A | 0.065 | t-distribution | 3 |
u2.2 | Electrical measuring equipment effect | B | 0.017 | Rectangular distribution | 50 |
u2.3 | Switching unit effect | B | 0.010 | Rectangular distribution | 50 |
