This part of the HM serices (formerly the Petroleum Measurement Manual) covers the specification, design, installation and operation of metering stations for high accuracy measurement of the bulk flow of gases in pipelines and process plants. First published in 1991, this second edition incorporates new technology and the latest standards.
The types of metering equipment described are intended for the measurement of natural hydrocarbon gases for the purposes of sales, custody transfer, taxation or the allocation of production in a multi-user pipeline. Such systems will be referred to in this guide as fiscal metering systems, implying a standard of accuracy that is the highest reasonably attainable in practice, taking into consideration the balance between cost and accuracy.
Compliance with this guide and the relevant standards to which it refers should assist approval, where appropriate, by the UK Government and other regulatory authorities but it does not guarantee or imply such approval.
This guide will also be of use in the design and specification of metering systems that are not required to meet fiscal standards of accuracy such as those used for plant operational purposes and equipment performance monitoring.
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