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The Measurement systems and instruments are frequently calibrated. Do anyone know the reason behind different calibrations. I have read that the measurement uncertainty increases with every step in the calibration chain..Is it right and why is that?

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  • $\begingroup$ It is all discussed in great detail in this freely available source: EURACHEM/CITAC Guide, “Quantifying Uncertainty in Analytical Measurement”, 3rd Ed., 2012. Just search for it online. It has worked examples and lots more. $\endgroup$
    – Ed V
    Feb 5, 2020 at 0:35
  • $\begingroup$ Thanks for you answer $\endgroup$
    – SnowMan
    Feb 5, 2020 at 8:13

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