Answer Posted / santosh k sahoo

3 ways.
1. Repeatability: 3 concentration (n=3) or one concentration i.e.100% (n=6).
2. Intermediate Precision: samples to be run by either different analyst or different instrument or different days.
3. Reproducibility: samples to be run in 2 different labs.

In cases where reproducibility has been performed, intermediate precision is not needed 

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