Introduction
ISO 5725 uses two terms, “trueness” and “precision”, to describe the accuracy of a measurement method. “Trueness” refers to the closeness of agreement between the expectation of a measurement result and a true value. "Precision" refers to the closeness of agreement between independent measurement results obtained under stipulated conditions.
Course Objectives
Participants for this training course will learn:
- specifies basic methods for estimating the bias of a measurement method and the laboratory bias when a measurement method is applied
- provides a practical approach of a basic method for routine use in estimating the bias of measurement methods and laboratory bias
- provides a brief guidance to all personnel concerned with designing, performing or analyzing the results of the measurements for estimating bias.
- measurement methods which yield measurements on a continuous scale and give a single value as the measurement result, although the single value can be the outcome of a calculation from a set of observations.
- the measurement method has been standardized and all measurements are carried out according to that measurement method.
Target Audience
This training is aimed for anyone looking to expand their knowledge of Accuracy (trueness and precision) of measurement methods and results.
Course Outlines
Day 1
Introduction
- Scope
- Normative references
- Terms and definitions
- Symbols
Day 2
Determination of the bias of a standard measurement method by an interlaboratory experiment
- Experimental design considerations
- Objective
- Layout of the experiment
- Cross-references to ISO 5725-1 and ISO 5725-2
- The statistical model
- Required number of laboratories and measurements
Day 3
Requirements of the accepted reference value
- Approaches to assigning the accepted reference value
- Materials used in the experiment
- Requirements of measurement uncertainty of the accepted reference value
Carrying out the experiment
- Evaluation of precision
- Check of precision
- Estimation of the bias of the standard measurement method
- Example
Day 4
Determination of the laboratory bias of one laboratory using a standard measurement method
- Experimental design considerations
- Objective
- Layout of the experiment
- Cross-references to ISO 5725-1 and ISO 5725-
- The statistical model
- Number of measurement results
- Requirements of the accepted reference values
Day 5
Carrying out the experiment
- Check of the within-laboratory standard deviation
- Estimation of the laboratory bias
Report to the panel and decisions to be taken by the panel
- Cross-reference to ISO 5725-2
- Report by the statistical expert
- Decisions by the panel
About Amsterdam
Amsterdam, capital of the Netherlands, is a popular destination amongst travelers from all around the world. Once just a little fishing village, Amsterdam is now a major international city after having become an important port during the 1600s. Throughout its history, the city has had many famous residents, including artists, philosophers and other historical figures. There is much to discover along Amsterdam's quaint streets and picturesque canals. So much so that a flight to Amsterdam comes with a guarantee of cultural and historical attractions that will provide memories to last a lifetime. Amsterdam is a hotbed of culture for travelers of all ages and tastes.
Things to do and places to visit in Amsterdam
From the moment passengers step off their flight to Amsterdam, they will find it a friendly city with a lively atmosphere. Its flat geography means that it is perfect for exploring by bicycle. If you're feeling less active, it the city is also well-served by public transport. The so-called Venice of the North has something for every visitor. Culture vultures have museums, galleries and theaters to see, Families can visit the zoo or the Science Center NEMO.
When visiting Amsterdam, be sure to:
- See the picture-perfect and colorful houses of the Grachtengordel district.
- See the iconic works of one of Holland's most famous artists at the Van Gogh Museum.
- Visit the house where Anne Frank and her family hid from the Nazis.
- Browse through the extensive collection of fantastic art in the Rijksmusem.
- Wander through the blaze of colors that is the Singel Flower Market.
- See the city at a leisurely pace on a canal cruise.
- Marvel at one of the city's many historic churches.
- Learn about life aboard a ship at the National Maritime Museum.
- Discover the Begijnhof's well-preserved medieval architecture.
- See animals of all kinds, as well as the butterfly pavilion and aquarium, at the Artis Zoo.