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Estimation of Measurement Uncertainty for Testing Laboratories in the Food Sector

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Introduction

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Testing Laboratories within the Food Sector are experiencing a renewed focus on their Estimation of Measurement Uncertainty for tests within their scope of accreditation. There are new requirements within ISO 17025:2017 for reporting of Statements o... Read More

Testing Laboratories within the Food Sector are experiencing a renewed focus on their Estimation of Measurement Uncertainty for tests within their scope of accreditation. There are new requirements within ISO 17025:2017 for reporting of Statements of Conformity to laboratory clients. The Decision Rules used to determine conformity have to be agreed with the client. It is not possible to know the level of risk nor to make a statement of conformance if the measurement uncertainty has not been calculated. The LabCred Accreditation and CLAS Accreditation requirements align with the updated requirements in ISO17025:2017, with the purpose of providing confidence in the results reported.

“How certain are you of the measurements in your test report? How well does the result represent the value of the quantity being measured?”

This course explains the concept of measurement uncertainty and describes the two main approaches for estimation of uncertainty for testing laboratories in the food sector. It is suitable for those who have previously calculated measurement uncertainty or are at the early stages in this process.

The aim of this programme is to provide delegates an introduction to the tools and knowledge they need to;
a) Select an approach for measurement of uncertainty of their test.
b) Calculate and combine uncertainties.
c) Report uncertainty in their test reports.
d) Comprehend the relationship between measurement uncertainty, decision rules and statements of conformance.

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What's covered?

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This course will cover;
• The concept of measurement uncertainty.
• Sources of uncertainty within the test laboratory.
• The statistical techniques for calculation of uncertainty.
• An overview of the various approaches for estimation of measurement uncertainty. The course will focus on the following approaches:

    • Use of Single Lab Validation & QC data (ideally the lab can utilise existing data for estimation of measurement uncertainty)
      Experimental data from Reproducibility Replicates using approach outlined ISO19036:2019 (microbial counts in the food chain). Micro presents unique challenges as the measurand is a living organism and the approach outlined in ISO19036 recognises this.
    • How to update contract review forms to include agreement with clients on decision rules and statements of conformity
    •  How to report uncertainty and statements of conformity in test reports.
    • How to interpret and trend external proficiency test results.
    • Completion of a Gap analysis checksheet which encourages delegates to consider the requirements of ISO17025:2017 and is a useful basis for an action plan.

The training programme is interactive and applies different training methods and styles to deliver the key messages effectively e.g. discussions, group activities and demonstrations. The training includes practical exercises using Microsoft Excel enabling the delegate to verify their knowledge and skills.

The Tutor is experienced in auditing against the ISO17025:2017 and in supporting laboratories with uncertainty calculations and will share experiences on expectations and outcomes by accreditation assessment bodies and laboratory clients.

Who should participate?

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Anyone who requires an understanding of uncertainty of measurement and for those who want to calculate & report uncertainty of measurement for their test methods including;
• Laboratory Managers
• Supervisors
• Technicians
• Analysts

What will I learn?

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Participants achieve the following learning outcomes from the programme; By the end of this training course you will be able to:

  1. Understand the concept of measurement uncertainty and the specific compliance requirements with in ISO17025:2017.
  2. Appreciate the sources of uncertainty within the test method.
  3. Determine which of the approaches available for estimation of uncertainty is suitable for your test methods.
  4. Consider the needs of your customers and update contract review forms and test reports to include determination of decision rules and compliance statements.

Who are the tutors?

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What are the entry requirements?

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Anyone who requires a basic understanding of uncertainty of measurement and for those who want to calculate & report uncertainty of measurement for their test methods including;

  • Laboratory Managers
  • Supervisor
  • Technicians
  • Analysts
  • Laboratory customers and end users of measurement data.

How do we train and support you?

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In-House Courses
Course tutor will contact your organisation in advance. In-house courses can be customised to meet your organisation’s specific requirements. Where appropriate, course exercises can be carried out using procedures, data etc from your organisation.

Course Manual
Delegates will receive a very comprehensive course manual.

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SnapshotSnapshot

Course Code
FS040
Duration
2 training days
Delivery Mode
This programme is delivered by or In-Company training 
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What Our Learner's SayWhat Our Learner's Say


Anne Marie was very professional and knowledgable on the subject area
Mary K February 7, 2023
Very informative and brought my understanding of subject to the next level
Denis O February 7, 2023
Overall the course was brilliant and helped me have a deeper understanding of the number I use and how to improve on the accuracy and precision of these results.
Darren M February 7, 2023
Very Good - Well delivered and knowledgeable. Thank you.
Sinead C February 7, 2023
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Estimation of Measurement Uncertainty for Testing Laboratories in the Food Sector

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Estimation of Measurement Uncertainty for Testing Laboratories in the Food Sector

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