| 1.147 | calibration hierarchy | ||
| Sequence of calibrations from a reference to the final measuring system, where the outcome of each calibration depends on the outcome of the previous calibration. | |||
| Note 1: | Measurement uncertainty necessarily increases along the sequence of calibrations. | ||
| Note 2: | The elements of a calibration hierarchy are one or more measurement standards and measuring systems operated according to measurement procedures. | ||
| Note 3: | For this definition, the ‘reference’ can be a definition of a measurement unit, through its practical realization, or a measurement procedure, or a measurement standard. | ||
| Note 4: | A comparison between two measurement standards may be viewed as a calibration if the comparison is used to check and, if necessary, correct the quantity value and measurement uncertainty attributed to one of the measurement standards. | ||
| Source: [VIM 2.40]. | |||
| 1.147 | calibration hierarchy | ||
| Sequence of calibrations from a reference to the final measuring system, where the outcome of each calibration depends on the outcome of the previous calibration. | |||
| Note 1: | Measurement uncertainty necessarily increases along the sequence of calibrations. | ||
| Note 2: | The elements of a calibration hierarchy are one or more measurement standards and measuring systems operated according to measurement procedures. | ||
| Note 3: | For this definition, the ‘reference’ can be a definition of a measurement unit, through its practical realization, or a measurement procedure, or a measurement standard. | ||
| Note 4: | A comparison between two measurement standards may be viewed as a calibration if the comparison is used to check and, if necessary, correct the quantity value and measurement uncertainty attributed to one of the measurement standards. | ||
| Source: [VIM 2.40]. | |||