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Experimental designs for evaluation of uncertainty — Use of factorial designs for determining uncertainty functions
| 분야 | ISO/TC 69/SC 6 : Measurement methods and results |
|---|---|
| 적용범위 | This document specifies experimental procedures and statistical analysis for the determination of measurement uncertainty in situations where the following conditions are fulfilled: Condition 1: The level of the measurand is non-negative, e.g. concentration level of a contaminant in a sample. Condition 2: Measurement error consists of two independent components: for one of these components the relative standard deviation is constant (that is, the absolute deviation is proportional to the level of the measurand), whereas for the other component the absolute standard deviation is constant (that is, independent of the level of the measurand). Condition 3: Samples for different levels of the measurand can be made available; if the level of the measurand is the concentration of a chemical substance, samples could be obtained e.g. by fortifying (spiking) blank samples. Conditions 1 and 2 are met for most applications of instrumental chemical analyses. Condition 3 can be met for chemical analyses if blank samples are available. This document can also be used to determine precision data for a particular laboratory for different technicians, different environmental conditions, the same or similar test items, with the same level of the measurand, over a certain period of time. |
| 국제분류(ICS)코드 |
17.020 : 계량 및 측정 일반
03.120.30 : 통계적 방법의 응용 |
| 페이지수 | 26 |
| Edition | 1 |
| No. | 표준번호 | 표준명 | 발행일 | 상태 |
|---|---|---|---|---|
| 1 | ISO/TS 23471:2022 | Experimental designs for evaluation of uncertainty — Use of factorial designs for determining uncertainty functions | 2022-11-07 | 표준 |
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