HM 20. Proving of aviation fuelling positive displacement meters

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This publication provides the industry with guidance on the minimum requirements for the proving of positive displacement meters used in aviation fuel handling systems. It is only applicable to positive displacement aircraft fuelling equipment (AFE) meters proved by positive displacement reference meters or volumetric proving tanks.

The primary objective of the publication is to promote uniformity and consistency both in the proving of AFE meters by reference meter and volumetric proving tank and in the interpretation of results.

This second edition provides new guidance on topics including electronic meter heads, low flow overwing meter calibration and cleaning of reference devices that have been used with products other than aviation turbine fuel. 

This publication has been prepared by representatives from the Energy Institute’s Aviation and Hydrocarbon Management Committees. It is intended for international use and therefore, some of the procedures contained herein differ to those specified in other parts of the EI’s Hydrocarbon Management series that are specifically intended for UK operations.

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