Codes & Standards - Purchase

ISO/IEC Guide 98-6:2021

Uncertainty of measurement — Part 6: Developing and using measurement models

SKU: iso_081374_177375 Published by ISO/IEC Publication Year 2021 1 Edition 96 pages

Product Details

Overview

This document provides guidance on developing and using a measurement model and also covers the assessment of the adequacy of a measurement model. The document is of particular interest to developers of measurement procedures, working instructions and documentary standards. The model describes the relationship between the output quantity (the measurand) and the input quantities known to be involved in the measurement. The model is used to obtain a value for the measurand and an associated uncertainty. Measurement models are also used in, for example, design studies, simulation of processes, and in
engineering, research and development.
This document explains how to accommodate in a measurement model the quantities involved. These quantities relate i) to the phenomenon or phenomena on which the measurement is based, that is, the measurement principle, ii) to effects arising in the specific measurement, and iii) to the interaction with the artefact or sample subject to measurement.
The guidance provided is organised in accordance with a work flow that could be contemplated when developing a measurement model from the beginning. This work flow starts with the specification of the measurand (clause 6). Then the measurement principle is modelled (clause 7) and an appropriate form of the model is chosen (clause 8). The basic model thus obtained is extended by identifying (clause 9) and adding (clause 10) effects arising from the measurement and the artefact or sample subject to measurement. Guidance on assessing the adequacy of the resulting measurement model is given in clause 12. The distinction between the basic model and the (complete) measurement model in the work flow should be helpful to those readers who already have a substantial part of the measurement model in place, but would like to verify that it contains all effects arising from the measurement so that it is fit for purpose.
Guidance on the assignment of probability distributions to the quantities appearing in the measurement model is given in JCGM 100:2008 and JCGM 101:2008. In clause 11, this guidance is supplemented by describing how statistical models can be developed and used for this purpose.
When using a measurement model, numerical problems can arise including computational effects such as rounding and numerical overflow. It is demonstrated how such problems can often be alleviated by expressing a model differently so that it performs well in calculations. It is also shown how a reformulation of the model can sometimes be used to eliminate some correlation effects among the input quantities when such dependencies exist.
Examples from a number of metrology disciplines illustrate the guidance provided in this document.

Language

English

Format

PDF

GST REG No R119441681
QST REG No R1006017360

Features	CSA Advantage^TM	CSA OnDemand^TM
Offline access	CSA Advantage^TM. feature available. Offline access	CSA OnDemand^TM. feature available. Offline access
Full-text search	CSA Advantage^TM. feature available. Full-text search	CSA OnDemand^TM. feature available. Full-text search
Create highlights and personal notes	CSA Advantage^TM. feature available. Create highlights and personal notes	CSA OnDemand^TM. feature available. Create highlights and personal notes
Newest editions added automatically	CSA Advantage^TM. feature available. Newest editions added automatically	CSA OnDemand^TM. feature available. Newest editions added automatically
Includes all supported languages and archive versions	CSA Advantage^TM. feature not available. Includes all supported languages and archive versions	CSA OnDemand^TM. feature available. Includes all supported languages and archive versions
My Files - create customized files by adding multiple clauses, tables or figures from the standard into your own personal File for quick reference	CSA Advantage^TM. feature available. My Files - create customized files by adding multiple clauses, tables or figures from the standard into your own personal File for quick reference	CSA OnDemand^TM. feature not available. My Files - create customized files by adding multiple clauses, tables or figures from the standard into your own personal File for quick reference
Toggle between your files and the full standard to maintain context	CSA Advantage^TM. feature available. Toggle between your files and the full standard to maintain context	CSA OnDemand^TM. feature not available. Toggle between your files and the full standard to maintain context
Instantly preview cross referenced material within the book	CSA Advantage^TM. feature available. Instantly preview cross referenced material within the book	CSA OnDemand^TM. feature not available. Instantly preview cross referenced material within the book
Export personal notes to Excel	CSA Advantage^TM. feature available. Export personal notes to Excel	CSA OnDemand^TM. feature not available. Export personal notes to Excel
Transfer notes and highlights when updates are available	CSA Advantage^TM. feature available. Transfer notes and highlights when updates are available	CSA OnDemand^TM. feature not available. Transfer notes and highlights when updates are available
Adobe Reader PDF and browser compatible for iOS and Android	CSA Advantage^TM. feature not available. Adobe Reader PDF and browser compatible for iOS and Android	CSA OnDemand^TM. feature available. Adobe Reader PDF and browser compatible for iOS and Android
Web, Android, iOS Compatible	CSA Advantage^TM. feature available. Web, Android, iOS Compatible	CSA OnDemand^TM. feature not available. Web, Android, iOS Compatible

Browse By Subject Area

Browse By Publisher

ICS Catalogue

Browse By Subject Area

CSA Subscriptions

ICS Catalogue

en

fr

Catalogue

Browse By Subject Area

Browse By Publisher

ICS Catalogue

Subscription

Browse By Subject Area

CSA Subscriptions

ICS Catalogue

Services

en

fr

Codes & Standards - Purchase

ISO/IEC Guide 98-6:2021

Product Details

Language

Format

Browse By Subject Area

Browse By Publisher

ICS Catalogue

Browse By Subject Area

CSA Subscriptions

ICS Catalogue

Language

en

fr

Currency

CAD

USD

Catalogue

Browse By Subject Area

Browse By Publisher

ICS Catalogue

Subscription

Browse By Subject Area

CSA Subscriptions

ICS Catalogue

Services

Language

en

fr

Currency

CAD

USD

Search Section

Codes & Standards - Purchase

ISO/IEC Guide 98-6:2021

Product Details

Language

Format