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HMRC internal manual

Oils Technical Manual

Flow meters - other information: MID Requirements

The problem is not only that the meters have to be located where they can work, but oncethat is done, changes to the plant around the meters can also make them inaccurate.

The MID will put into law the following:

  • A meter will operate within the maximum permitted errors of its designed class of accuracy or it will be withdrawn.
  • ‘Every measurement system shall be so positioned as to facilitate testing.’
  • If it needs it, a measurement system will be marked with the temperature range it must work within, and similarly with a flow rate range.
  • Where a measuring system is marked for use for a particular purpose or manner of use, it must be used in that way.