Reproducibility is in every respect the same as repeatibility exception that for reproducibility testing the flow rate is changed and then reset between repeats.

Linearity is a measure of how close the relationship between flow and flowmeter output approximates a linear function.

The differences between Repeatability and Reproducibility are explaned in detail and the contribution of Linearity to Reproducibility is also explored.

Experimantal data are presented demonstrating the above concepts using Student's t analysis with 95% C.L. (Confidence Level).

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