| 1.139 | Type B evaluation of measurement uncertainty | ||
| Type B evaluation | |||
| Evaluation of a component of measurement uncertainty determined by means other than a Type A evaluation of measurement uncertainty. | |||
| Examples: | Evaluation based on information | ||
| – associated with authoritative published quantity values, | |||
| – associated with the quantity value of a certified reference material, | |||
| – obtained from a calibration certificate, | |||
| – about drift, | |||
| – obtained from the accuracy class of a verified measuring instrument, and | |||
| – obtained from limits deduced through personal experience. | |||
| Note: | See also GUM,34 2.3.3. | ||
| Source: [VIM 2.29]. | |||
| 1.139 | Type B evaluation of measurement uncertainty | ||
| Type B evaluation | |||
| Evaluation of a component of measurement uncertainty determined by means other than a Type A evaluation of measurement uncertainty. | |||
| Examples: | Evaluation based on information | ||
| – associated with authoritative published quantity values, | |||
| – associated with the quantity value of a certified reference material, | |||
| – obtained from a calibration certificate, | |||
| – about drift, | |||
| – obtained from the accuracy class of a verified measuring instrument, and | |||
| – obtained from limits deduced through personal experience. | |||
| Note: | See also GUM,34 2.3.3. | ||
| Source: [VIM 2.29]. | |||