interval containing the set of true quantity values of a measurand with a stated probability, based on the information available

Notes click to expand contents

NOTE 1 A coverage interval does not need to be centred on the chosen measured quantity value (see ISO/IEC Guide 98-3:2008/Suppl.1).

NOTE 2 A coverage interval should not be termed “confidence interval” to avoid confusion with the statistical concept (see ISO/IEC Guide 98-3:2008, 6.2.2).

NOTE 3 A coverage interval can be derived from an expanded measurement uncertainty (see ISO/IEC Guide 98-3:2008, 2.3.5).

Annotations click to expand contents

1 Quantities and units click to expand contents

2 Measurement click to expand contents

2.1 measurement
2.2 metrology
2.3 measurand
2.4 measurement principle
2.5 measurement method
2.6 measurement procedure
2.7 reference measurement procedure
2.8 primary reference measurement procedure
2.9 measurement result
2.10 measured quantity value
2.11 true quantity value
2.12 conventional quantity value
2.13 measurement accuracy
2.14 measurement trueness
2.15 measurement precision
2.16 measurement error
2.17 systematic measurement error
2.18 measurement bias
2.19 random measurement error
2.20 repeatability condition of measurement
2.21 measurement repeatability
2.22 intermediate precision condition of measurement
2.23 intermediate measurement precision
2.24 reproducibility condition of measurement
2.25 measurement reproducibility
2.26 measurement uncertainty
2.27 definitional uncertainty
2.28 Type A evaluation of measurement uncertainty
2.29 Type B evaluation of measurement uncertainty
2.30 standard measurement uncertainty
2.31 combined standard measurement uncertainty
2.32 relative standard measurement uncertainty
2.33 uncertainty budget
2.34 target measurement uncertainty
2.35 expanded measurement uncertainty
2.36 coverage interval
2.37 coverage probability
2.38 coverage factor
2.39 calibration
2.40 calibration hierarchy
2.41 metrological traceability
2.42 metrological traceability chain
2.43 metrological traceability to a measurement unit
2.44 verification
2.45 validation
2.46 metrological comparability of measurement results
2.47 metrological compatibility of measurement results
2.48 measurement model
2.49 measurement function
2.50 input quantity in a measurement model
2.51 output quantity in a measurement model
2.52 influence quantity
2.53 correction

3 Devices for measurement click to expand contents

4 Properties of measuring devices click to expand contents

4.1 indication
4.2 blank indication
4.3 indication interval
4.4 nominal indication interval
4.5 range of a nominal indication interval
4.6 nominal quantity value
4.7 measuring interval
4.8 steady-state operating condition
4.9 rated operating condition
4.10 limiting operating condition
4.11 reference operating condition
4.12 sensitivity of a measuring system
4.13 selectivity of a measuring system
4.14 resolution
4.15 resolution of a displaying device
4.16 discrimination threshold
4.17 dead band
4.18 detection limit
4.19 stability of a measuring instrument
4.20 instrumental bias
4.21 instrumental drift
4.22 variation due to an influence quantity
4.23 step response time
4.24 instrumental measurement uncertainty
4.25 accuracy class
4.26 maximum permissible measurement error
4.27 datum measurement error
4.28 zero error
4.29 null measurement uncertainty
4.30 calibration diagram
4.31 calibration curve

5 Measurement standards (Etalons) click to expand contents

5.1 measurement standard
5.2 international measurement standard
5.3 national measurement standard
5.4 primary measurement standard
5.5 secondary measurement standard
5.6 reference measurement standard
5.7 working measurement standard
5.8 travelling measurement standard
5.9 transfer measurement device
5.10 intrinsic measurement standard
5.11 conservation of a measurement standard
5.12 calibrator
5.13 reference material
5.14 certified reference material
5.15 commutability of a reference material
5.16 reference data
5.17 standard reference data
5.18 reference quantity value

[VIM3] 2.36 coverage interval