ČSN EN ISO 15189 ed. 3 - Zdravotnické laboratoře - Požadavky na kvalitu a kompetenci
| Stáhnout normu: | ČSN EN ISO 15189 ed. 3 (Zobrazit podrobnosti) | |
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| Datum vydání/vložení: | 2023-07-01 | |
| Třidící znak: | 855101 | |
| Obor: | Požadavky na provoz zdravotnických laboratoří | |
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| Stav: | Platná |
3.29 pravdivost
(3.1) měření přijatelné.
[ZDROJ: ISO/IEC Guide 99:2007, 2.14, modifikováno – K heslu byly doplněny poznámky 4 a 5.]
3.29 trueness
measurement trueness
closeness of agreement between the average of an infinite number of replicate measured quantity values and a reference quantity value
Note 1 to entry: Measurement trueness is not a quantity and thus cannot be expressed numerically, but measures for closeness of agreement are given in ISO 5725-1.
Note 2 to entry: Measurement trueness is inversely related to systematic measurement error, but is not related to random measurement error.
Note 3 to entry: ‘Measurement accuracy” should not be used for ‘measurement trueness’.
Note 4 to entry: For qualitative examinations, trueness of measurement (closeness of agreement) can be expressed in terms of concordance (i.e. percent agreement with a reference examination).
Note 5 to entry: Trueness is a property of the examination procedure (3.9) that reflects the bias (3.1) of the measurements from the expected or target value. It is described qualitatively as good or bad. An examination procedure (3.9) has good trueness if the bias (3.1) of the measurements is acceptable.
[SOURCE: ISO/IEC Guide 99:2007, 2.14, modified — Notes to entry 4 and 5 have been added.]