本文件为应用和多相流量计的分类以及此类流量计的实施和使用指南和建议建立了共同的基础和协助。 直接测量油、水和气体流量的所谓在线多相流量计（MPFM），以及部分和完全分离MPFM是本文件的主要重点。本文件不包括传统的两相或三相分离器。仅对湿气流量计进行了有限的参考，因为尽管湿气流量是多相流的一个子集，但湿气测量包含在ISO/TR 11583和ISO/TR 12748中。

This document establishes a common basis for, and assistance in, the classification of applications and multiphase meters, as well as guidance and recommendations for the implementation and use of such meters. The so-called in-line multiphase flow meters (MPFMs) that directly measure the oil, water and gas flow rates, as well as the partial- and full-separation MPFMs are the main focus of this document. Conventional two- or three-phase separators are not included in this document. Only limited reference is made to wet-gas meters, since although wet-gas flow is a subset of multiphase flow, wet-gas measurement is covered by ISO/TR 11583 and ISO/TR 12748.