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ISO 12836-2012 pdf free download
ISO 12836-2012 pdf free download.Dentistry — Digitizing devices for CAD/CAM systems for indirect dental restorations — Test methods for assessing accuracy
Medecine bucco-dentaire — Dispositifs de numérisation des systèmes de CFAO pour restaurations dentaires — Méthodes d’essai pour i’évaluation de I’exactitude.
conditions where independent results of measurements are obtained with the same measurement procedure in the same laboratory by the same operator using the same equipment within short intervals of time without new calibration
[SOURCE: ISO 5725-1:1994. definition 3.14, modified]
results of measurements> closeness of the agreement between the results of measurements of the same measurand carried out under changed conditions of measurement
NOTE 1 to entry: The changed conditions may include the observer, measuring instrument, location and time. NOTE 2 to entry: The set of specified conditions is termed reproducibility conditions.
NOTE 3 to entry: Reproducibility is a qualitative concept. Its quantitative counterpart is standard deviation of reproducibility or coefficient of variation of reproducibility of the measurement results.
NOTE 4 to entry: Reproducibility may depend on the value of the measurand,
conditions where results of measurements are obtained on the same measurand under different conditions in different laboratories
NOTE 1 to entry: The different conditions should be specified,
(SOURCE: ISO 5725-1:1994. definition 3.18, modified]
mean that would result from an infinite number of measurements of the same measurand carried out under repeatable conditions minus a true value of the measurand
NOTE 1 to entry: Systematic error is equal to trueness minus random error.
NOTE 2 to entry: Systematic error may be constant or proportional to the value of the measurand,
NOTE 3 to entry: In practice, systematic error is estimated from 30 or more repeated measurements of a measurand under specified conditions.
true value (of a quantity)
value consistent with the definition of a given particular quantity
NOTE ito entry: This is a value that would be obtained by a perfect measurement. True values are by nature indeterminate.ISO 12836-2012 pdf free download.
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