7. Frequently asked questions
How do you proceed if the number of measurements between each series is not identical?
You can refer to ISO 5725-6, which specifies the formulas in such a situation.
What is the origin of the factors 2.8, 3.3 and 3.6 that define the acceptable gaps between measurements in the same series?
Overall, the CR factor 0.95(n) is defined as the critical range at probability level 0.95 for n tests. CR 0.95(n) = f ( n ). Sr with f ( n ) = 2.8 for n = 2, 3.3 for n = 3, 3.6 for n = 4. A table described in ISO 5625-6 gives you the values of f ( n ) for n ranging from 2 to 100.
How can you estimate the accuracy of your measurement process?
In addition to the use of a certified reference...
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Glossary
Bibliography
ISO 5725-1: 1994 Accuracy (trueness and precision) of measurement results and methods – Part 1: General principles and definitions (in the process of being replaced at the time of writing).
ISO 5725-2: 2019 Accuracy (trueness and precision) of measurement results and methods – Part 2: Basic method for determining the repeatability and reproducibility of a standardized...
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