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Canadian Association for Laboratory Accreditation Inc.

Building Laboratory Excellence

4300: Introduction to Control Charts

In Class - 1 Day
Virtual - 2 half days


Provides participants with an introduction to control charts. Control charting is a graphical technique that allows laboratories to determine the extent of variation in testing results. The use of control charts is one of the tools that can be used to detect trends and analyze quality control data as required in ISO/IEC 17025 clauses 5.9.1 and 5.9.2.

Who Should Attend

For all laboratory staff involved in the work of a laboratory with an ISO/IEC 17025 quality system who:

  • Conduct tests and calibrations
  • Conduct QA/QC
  • Participate in PT / ILC
  • Manage the quality system
  • Manage the laboratory

Course Overview

This introductory course will cover the principles underlying the use of control charts in the laboratory, examples of controls charts in a quality control program, and the basics of control chart interpretation. It includes hands-on exercises designed to improve understanding and build on the concepts covered in the course.

Learning Objectives

  • Understand the principles and value of control charts in a laboratory setting
  • Create and interpret basic control charts
  • Troubleshoot control charts

Course Content

  • Statistical process control
  • Typical quality control samples in a testing laboratory
  • Method QC vs Instrument QC
  • Basic math for control charts
  • Elements of a control chart
  • Principles of error detection
  • Data for control charts
  • Quality Control
  • Control chart evaluation
  • Control chart rules
  • Troubleshooting
  • Control chart management