Article: Uncertainties of measuring systems.(Part 3 Of A 3-Part Series)

Measuring systems include several measuring instruments. The uncertainty of a measuring system includes uncertainties of its measuring instruments. Based on previously stated uncertainties of measuring instruments, we are able to evaluate uncertainties of different measuring systems encountered in the gas industry.

Measurement Of Corrected Volume

The measurement equation for corrected volume:

[V.sub.c] [V.sub.m] [Z.sub.s]/[Z.sub.m] [P.sub.m]/[P.sub.s] [T.sub.s]/[T.sub.m] [V.sub.m] [F.sup.2.sub.pv] [P.sub.m]/[P.sub.s] [T.sub.s]/[T.sub.m] (25)

where

[V.sub.c] Corrected volume or volume at standard conditions;

[V.sub.m] ...

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