ISO/TS 23471:2022

International Standard   Current Edition · Approved on 07 November 2022

Experimental designs for evaluation of uncertainty — Use of factorial designs for determining uncertainty functions

ISO/TS 23471:2022 Files

English 26 Pages
Current Edition
63.66 OMR

ISO/TS 23471:2022 Scope

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.

Best Sellers

GSO 150-2:2013
 
Gulf Standard
Expiration dates for food products - Part 2 : Voluntary expiration dates
OS GSO 150-2:2013
GSO 150-2:2013 
Omani Standard
Expiration dates for food products - Part 2 : Voluntary expiration dates
OS GSO 2055-1:2015
GSO 2055-1:2015 
Omani Standard
HALAL FOOD - Part 1 : General Requirements
GSO 2055-1:2015
 
Gulf Technical Regulation
HALAL FOOD - Part 1 : General Requirements

Recently Published

ISO 19970:2025
 
International Standard
Refrigerated hydrocarbon and non-petroleum based liquefied gaseous fuels — Metering of gas as fuel on LNG carriers during cargo transfer operations
ISO 3664:2025
 
International Standard
Graphic technology and photography — Viewing conditions
ISO/IEC 14496-10:2025
 
International Standard
Information technology — Coding of audio-visual objects — Part 10: Advanced video coding
ISO 19361:2025
 
International Standard
Measurement of radioactivity — Determination of beta emitters activities — Test method using liquid scintillation counting