Training Course: Uncertainty of measurement ISO/IEC GUIDE 98-3:2008

SC234752 27 Apr - 1 May 2025 Cost : 2275 € Euro
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Introduction

This training course is designed to be as a guide establishes general rules for evaluating and expressing uncertainty in measurement that are intended to be applicable to a broad spectrum of measurements. The basis of the Guide is Recommendation 1 (CI-1981) of the Comité International des Poids et Mesures (CIPM) and Recommendation INC-1 (1980) of the Working Group on the Statement of Uncertainties. The Working Group was convened by the Bureau International des Poids et Mesures (BIPM) in response to a request of the CIPM. The ClPM Recommendation is the only recommendation concerning the expression of uncertainty in measurement adopted by an intergovernmental organization.

Course Objectives

  • Basics of the uncertainty of measurement theory
  • Methods for calculating the extension interval
  • Promotion of Monte Carlo decomposition
  • Procedure for estimating the uncertainty of measurement
  • Examples of evaluation of uncertainty of measurement
  • Discussion of the interpretation of Supplements 1 and 2 to the GUM

Course outlines

Day 1

Introduction

  • Scope
  • Definitions
  • General metrological terms
  • The term “uncertainty”
  • Terms specific to this Guide

Day 2

Basic concepts

  • Measurement
  • Errors, effects, and corrections
  • Uncertainty
  • Practical considerations

Day 3

Evaluating standard uncertainty

  • Modelling the measurement
  • Type A evaluation of standard uncertainty
  • Type B evaluation of standard uncertainty
  • Graphical illustration of evaluating standard uncertainty

Day 4

Determining combined standard uncertainty

  • Uncorrelated input quantities
  • Correlated input quantities

Determining expanded uncertainty

  • Introduction
  • Expanded uncertainty
  • Choosing a coverage factor

Day 5

Reporting uncertainty

  • General guidance
  • Specific guidance
  • Examples and class work
  • Summary of procedure for evaluating and expressing uncertainty
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