Certificate Course on Measurement Uncertainty in Chemical Testing

Overview

Measurement uncertainty in chemical testing is an essential aspect of laboratory analysis that provides important information about the quality and reliability of test results — the degree of doubt or lack of confidence associated with a measured value, affected by the accuracy and precision of equipment, the quality of reagents and samples, and the proficiency of laboratory personnel.

To measure uncertainty, a systematic approach is followed that involves identifying and quantifying sources of error and determining their combined effect on the final result, based on the principles of metrology and using statistical methods to estimate uncertainty. ISO guidelines outline the steps to follow to ensure reliable and accurate results — identifying and quantifying all sources of error, estimating uncertainties using appropriate statistical techniques, and reporting uncertainty values in test reports.

What You'll Learn

• Recognizing common sources of measurement uncertainty
• Evaluating uncertainty in sample preparation and analysis
• Techniques for assessing and communicating uncertainty
• Applying uncertainty concepts in decision-making
• Calculating combined and expanded uncertainty

Who This Course Is For

• Lab analysts who need to report uncertainty on accredited test results
• Quality managers preparing for ISO/IEC 17025:2017 accreditation
• Recent graduates and professionals strengthening their metrology fundamentals
• Corporates and institutes training staff on measurement uncertainty reporting

Curriculum

16 lessons · 43 topics

1. ISO/IEC 17025:2017 — Requirements for Evaluating Measurement Uncertainty 3 topics
2. ISO/IEC 17025:2017 — Requirements for Reporting 3 topics
3. Measurement Uncertainty Guides for Chemical Labs 4 topics
4. Measurement Uncertainty Process 8 topics
5. Specify the Measurand
6. Identify Sources of Uncertainty 2 topics
7. Common Sources of Uncertainty 9 topics
8. Uncertainties in the Analytical Process 3 topics
9. Quantify Sources: Robust Testing
10. Characterize Sources of Uncertainty 3 topics
11. Convert Uncertainty Components to Standard Deviations 1 topic
12. Calculating Combined Uncertainty 3 topics
13. Calculating Expanded Uncertainty
14. Evaluating Uncertainty for Appropriateness
15. Reporting Uncertainty for Testing Labs 3 topics
16. Determining Conformity 1 topic