HM 45. Statistical control of measuring instruments using control charts – simplified method

Document options

EI Technical Partners get free access to publications. You will need to Login or Register here

Dear customer,

Please note that the EI publishing department has moved to a new print supplier for 2021. The option to purchase Hard Copies of our publications has been suspended until the New Year, when we will be making select areas of the catalogue available again. Until then, we will continue to offer PDF versions of our books. Please email if you have any queries.

Kind regards,
EI Publications

  • Published: November 2018
  • REF/ISBN: 9781787250383
  • Edition: 2nd
  • Status: Current

This publication provides guidance for the adoption and implementation of statistical meter control charts. It is based on the statistical concepts used in ISO 4124 – Statistical control of dynamic liquid hydrocarbon volumetric metering systems. The document provides a simplified version suitable to those situations where insufficient computer capacity, lack of local expertise or limited human resources is encountered.

This second edition of HM 45 includes a number of updates. A new Annex B provides a more rigorous statistical approach to using meter control charts and includes material that was previously included in HM 25. Statistics for static and dynamic measurement.

The procedures contained in this document could, in principle, be applied to any type of metering installation. However, they are intended for use in situations where instruments are calibrated, proved or verified regularly and frequently, such as in fixed installations incorporating a proving system.

Although this publication has been primarily produced to apply to flow meters, the principles outlined can be applied to monitor the performance of
secondary measurement instruments such as pressure transmitters, temperature measurement devices and densitometers.

Members Benefits

Are you an EI Member? If yes, register/log in now to ensure you receive free access or discounts to EI publications.

If you are not a Member, why not join today and receive all of the benefits of EI Membership? EI Members are entitled to a 25% discount on most EI publications.