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Fundamentals of Measurement Uncertainty

ASQ - American Society for Quality
Training overview
Professional Course
2 days

Course description

Introduction to Measurement Uncertainty - 2-day classroom course

This instructor-led classroom course on the fundamentals of measurement uncertainty is held by the American Society for Quality and accredited for 1.5 CEU hours. Participants will learn a practical approach to measurement uncertainty (MU) applications, based on fundamental practices.  Instructors will delve into MU for both testing and calibration laboratories and give participants a solid understanding of the steps required, accepted practices, and the types of uncertainties that need to be considered by an accredited laboratory.

This highly practical training will help participants understand the importance of Measurement Uncertainties (MUs) and their marketplace impacts on tests and measurements. Attendees will be equipped with the tools and techniques to calculate best measurement capabilities. 

Who should attend?

This course has been developed for laboratory management or technical staff responsible for the review of uncertainties and the calculation of uncertainties, assessors, and consultants for organizations seeking or maintaining accreditation to ISO/IEC 17025.


It is recommended that attendees have had exposure to some uncertainty budgets and have a basic understanding of Microsoft Excel. Attendees are encouraged to bring their own examples.

Training content

Day 1

    1. Hand out and review course material
    2. Welcome, introductions, goal setting
    3. Definitions and acronyms
    4. Key documents including ISO and ILAC
    5. Type A and Type B factors
    6. Root sum squaring
    7. Uncertainty software options
    8. Expressing measurement results and uncertainties
    9. Exercises for combining error terms, significant digits, rounding numbers, NIST 811 formatting, mean/median/mode
    10. Excel calculations and regression equations
    11. Example uncertainty budgets and calculations
    12. Uncertainty auditing tips

Day 2

      1. Accreditation scopes and uncertainties
      2. CMC vs. MU vs. Z-540 uncertainties
      3. Uncertainty budget fundamentals
      4. Distribution factors in budgets
      5. Uncertainty guidance documents including accreditation body and ILAC
      6. Testing uncertainty categories
      7. Review of CITAC guide for testing uncertainties
      8. Control charting and repeatability studies
      9. Guard banding
      10. Alternatives to GUM uncertainties
      11. Attendee uncertainty troubleshooting
      12. Uncertainty and traceability
      13. Uncertainty and proficiency testing
      14. Exercise to create an uncertainty SOP


    ASQ members pay the Early Bird price of $745 through 10/13/19.

    In-Company Training

    In addition to scheduled dates, this course can be delivered as an in-company training for your staff. Request information to learn the details.

    Certification / Credits

    This course has been accredited for:

    • CEU Hours: 1.5
    • ASQ RU: 1.5

    Participants will leave this course equipped to:

    • Understand the need for measurement uncertainty
    • Examine international practices and practical statistics
    • Understand uncertainties and budgets
    • Understand and calculate specific examples for measurement uncertainty

    About ASQ

    ASQ - American Society for Quality - Professional Training Courses & Certification

    ASQ (American Society for Quality) is an international community of individuals committed to quality who share the ideas and tools that make our world work better. With individual and organizational members around the world, ASQ has the reputation and reach...

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    Contact info

    ASQ - American Society for Quality

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