请注意，本标准的翻译版本中可能不包括任何附录或勘误表。API MPMS第5.2章，以及API MPMS第5.1章中关于流量计测量的一般注意事项，描述了在液态烃应用中使用位移计进行精确量测量的方法。它涵盖了液态烃应用中排量计的独特性能特征。它不适用于两相流体的测量。

Please note that any addenda or errata may not be included in translated editions of this standard.API MPMS Chapter 5.2, together with the general considerations for measurement by meters found in API MPMS Chapter 5.1, describes methods for obtaining accurate quantity measurement with displacement meters in liquid hydrocarbon service. It covers the unique performance characteristics of displacement meters in liquid hydrocarbon service. It does not apply to the measurement of two-phase fluids.