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Canadian Association for Laboratory Accreditation Inc.

Building Laboratory Excellence

4000: Measurement Uncertainty (Analytical Chemistry)

In Class - 1 Day
Virtual - 2 half days


Learn basics of uncertainty in chemistry or microbiology testing. Show laboratory managers, scientists and technicians how measurement uncertainty is handled in a chemistry laboratory.

Who Should Attend

For all laboratory staff involved in laboratory testing operations and QA/QC procedures:

  • Writing procedures
  • Conducting tests
  • Conducting QA/QC
  • Specifying reference materials
  • Preparing standards
  • Authorising reports
  • Purchasing calibration services

Course Overview

Measurement uncertainty is explained and illustrated. Participants will see case studies and will learn how to use the required statistical tools in their laboratories.

Each course chapter describes different aspects of measurement uncertainty, provides definitions of terms used and outlines the main features of the relevant literature on uncertainty of measurement.

Learning Objectives

  • Understanding the requirement
  • Simple approaches to developing uncertainty statements
  • Some examples

Course Content

Introduction and Objectives
  • Course aims
  • Approaches to learning
Uncertainty Boot Camp
  • Terms
  • Definitions
  • Concepts
  • Worked examples
The Little Picture - Uncertainty components related to
  • preparation of standards
  • spiking of samples and
  • contribution of people in the estimation and control of uncertainty.
The Big Picture
  • Taking data already acquired from a routine laboratory Quality Control program to create uncertainty budgets
  • Explaining the process to others.
Course wrap up and final examples.