Frequently asked questions
Applying the statistical concept of fidelity

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...