ISO 21748:2017 - $185.00   BUY NOW

Guidance for the use of repeatability, reproducibility and trueness estimates in measurement uncertainty evaluation

ISO 21748:2017 Publication Description:

ISO 21748:2017 gives guidance for

- evaluation of measurement uncertainties using data obtained from studies conducted in accordance with ISO 5725‑2, and

- comparison of collaborative study results with measurement uncertainty (MU) obtained using formal principles of uncertainty propagation (see Clause 14).

ISO 5725‑3 provides additional models for studies of intermediate precision. However, while the same general approach may be applied to the use of such extended models, uncertainty evaluation using these models is not incorporated in this document.

ISO 21748:2017 is applicable to all measurement and test fields where an uncertainty associated with a result has to be determined.

ISO 21748:2017 does not describe the application of repeatability data in the absence of reproducibility data.

ISO 21748:2017 assumes that recognized, non-negligible systematic effects are corrected, either by applying a numerical correction as part of the method of measurement, or by investigation and removal of the cause of the effect.

The recommendations in this document are primarily for guidance. It is recognized that while the recommendations presented do form a valid approach to the evaluation of uncertainty for many purposes, it is also possible to adopt other suitable approaches.

In general, references to measurement results, methods and processes in this document are normally understood to apply also to testing results, methods and processes.

International Classification for Standards (ICS)

ICS Classification Field ICS Field Sub-Group and Number
ICS-17-Metrology ICS Metrology (17.020)

ICS Related Standards

Cart Document Number Document Title
$138.00 ISO 10012:2003 Measurement management systems - Requirements for measurement processes and measuring equipment
$173.00 ISO 10012-1:1992 Quality assurance requirements for measuring equipment - Part 1: Metrological confirmation system for measuring equipment
$173.00 ISO 10012-2:1997 Quality assurance for measuring equipment - Part 2: Guidelines for control of measurement processes
$162.00 ISO 11095:1996 Linear calibration using reference materials
$68.00 ISO 11843-1:1997 Capability of detection - Part 1: Terms and definitions
$138.00 ISO 11843-2:2000 Capability of detection -- Part 2: Methodology in the linear calibration case
$68.00 ISO 11843-3:2003 Capability of detection - Part 3: Methodology for determination of the critical value for the response variable when no calibration data are used
$68.00 ISO 11843-4:2003 Capability of detection - Part 4: Methodology for comparing the minimum detectable value with a given value
$103.00 ISO 11843-5:2008 Capability of detection - Part 5: Methodology in the linear and non-linear calibration cases
$138.00 ISO 11843-6:2013 Capability of detection - Part 6: Methodology for the determination of the critical value and the minimum detectable value in Poisson distributed measurements by normal approximations
$103.00 ISO 11843-7:2012 Capability of detection - Part 7: Methodology based on stochastic properties of instrumental noise
$45.00 ISO 17:1973 Guide to the use of preferred numbers and of series of preferred numbers
$138.00 ISO/TS 17503:2015 Statistical methods of uncertainty evaluation - Guidance on evaluation of uncertainty using two-factor crossed designs
$103.00 ISO/TR 21074:2016 Application of ISO 5725 for the determination of repeatability and reproducibility of precision tests performed in standardization work for chemical analysis of steel
$185.00 ISO 21748:2010 Guidance for the use of repeatability, reproducibility and trueness estimates in measurement uncertainty estimation
$185.00 ISO/TS 21749:2005 Measurement and uncertainty for metrological applications - Repeated measurements and nested experiments
$162.00 ISO/TR 22971:2005 Accuracy (trueness and precision) of measurement methods and results - Practical guidance for the use of ISO 5725-2:1994 in designing, implementing and statistically analysing interlaboratory repeatability and reproducibility results
$162.00 ISO/TS 23165:2006 Geometrical product specifications (GPS) - Guidelines for the evaluation of coordinate measuring machine (CMM) test uncertainty
$232.00 ISO 2533:1975 Standard Atmosphere
$209.00 ISO 2533/ADD1:1985 Addendum 1 to ISO 2533:1975 Hypsometrical tables
$232.00 ISO 2533/ADD2:1997 ADDENDUM 2 to ISO 2533:1975 Extension to - 5000 m and standard atmosphere as a function of altitude in feet
$45.00 ISO 3:1973 Preferred numbers - Series of preferred numbers
$68.00 ISO 497:1973 Guide to the choice of series of preferred numbers and of series containing more rounded values of preferred numbers
$162.00 ISO 5479:1997 Statistical interpretation of data - Tests for departure from the normal distribution
$103.00 ISO 5725-1:1994 Accuracy (trueness and precision) of measurement methods and results - Part 1: General principles and definitions
$185.00 ISO 5725-2:1994 Accuracy (trueness and precision) of measurement methods and results - Part 2: Basic method for the determination of repeatability and reproducibility of a standard measurement method
$138.00 ISO 5725-3:1994 Accuracy (trueness and precision) of measurement methods and results - Part 3: Intermediate measures of the precision of a standard measurement method
$138.00 ISO 5725-4:1994 Accuracy (trueness and precision) of measurement methods and results - Part 4: Basic methods for the determination of the trueness of a standard measurement method
$209.00 ISO 5725-5:1998 Accuracy (trueness and precision) of measurement methods and results - Part 5: Alternative methods for the determination of the precision of a standard measurement method
$185.00 ISO 5725-6:1994 Accuracy (trueness and precision) of measurement methods and results - Part 6: Use in practice of accuracy values
$138.00 ISO/IEC Guide 98-1:2009 Uncertainty of measurement - Part 1: Introduction to the expression of uncertainty in measurement
$232.00 ISO/IEC Guide 98-3:2008 Uncertainty of measurement - Part 3: Guide to the expression of uncertainty in measurement (GUM:1995)
$232.00 ISO/IEC Guide 98-3/Suppl 1:2008 Propagation of distributions using a Monte Carlo method
$209.00 ISO/IEC Guide 98-3/Suppl 2:2011 Uncertainty of measurement - Part 3: Guide to the expression of uncertainty in measurement(GUM:1995) - Supplement 2: Extension to any number of output quantities
$185.00 ISO/IEC Guide 98-4:2012 Uncertainty of measurement - Part 4: Role of measurement uncertainty in conformity assessment
$232.00 ISO/IEC Guide 99:2007 International vocabulary of metrology - Basic and general concepts and associated terms (VIM)
$19.00 ISO 11843-5:2008/Amd1:2017 - Amendment 1