International Electrotechnical Commission

Publication detail

Reference	ISO/IEC GUIDE 98-3-SP2 ed1.0 withdrawn corrigendum	no preview
Title	Supplement 2 - Uncertainty of measurement -- Part 3: Guide to the expression of uncertainty in measurement (GUM:1995) - Extension to any number of output quantities
Publication date	2011-11-09
Format, price (Swiss francs) and language	184.- 73 pages 184.- 2054 Kb
Abstract	ISO/IEC Guide 98-3:2008/Suppl.2:2011 is concerned with measurement models having any number of input quantities and any number of output quantities. The quantities involved might be real or complex. Two approaches are considered for treating such models. The first approach is a generalization of the GUM uncertainty framework. The second is a Monte Carlo method as an implementation of the propagation of distributions. Appropriate use of the Monte Carol method would be expected to provide valid results when the applicability of the GUM uncertainty framework is questionable. For a prescribed coverage probability, ISO/IEC Guide 98-3:2008/Suppl.2:2011 can be used to provide a coverage region for the output quantities of a multivariate model, the counterpart of a coverage interval for a single scalar output quantiy. The provision of coverage regions includes those taking the form of a hyper-ellipsoid or a hyper-rectangle. These coverage regions are produced from the results of the two approaches described here. A procedure for providing an approximation to the smallest coverage region, obtained from results provided by the Monte Carol method, is also given. Detailed examples to illustrate the guidance are provided.
Technical Committee	ISO/TMB -
ICS Codes	17.020 Metrology and measurement in general *Including measuring instruments in general, preferred numbers, standard measures, general aspects of reference materials, etc. *Quantities and units, see 01.060 *Chemical reference materials, see 71.040.30
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Work in progress	Project Stage code Forecast publication date No project under development - -

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