Why do readings obtained from a float type ullage tape sometimes require a tape correction?

25 Aug '19, 21:38

Aug. 25, 2019, 9:38 p.m.
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When measuring the liquid level in the cargo tank of a liquefied gas carrier a number of different corrections may be necessary to get a true reading.

The length of tape in contact with very cold cargo vapors may contract.

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25 Aug '19, 21:39

Aug. 25, 2019, 9:39 p.m.
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