ISO 5167-5:2016规定了圆锥流量计插入满管管道时的几何形状和使用方法（安装和操作条件），以确定管道中流动流体的流速。 由于未校准圆锥流量计的不确定度对于特定应用而言可能过高，因此有必要根据第7条校准流量计。 ISO 5167-5:2016还提供了计算流量的背景信息，并适用于ISO 5167-1中给出的要求。 ISO 5167-5:2016仅适用于流量在整个测量段保持亚音速且流体可视为单相的圆锥流量计。未经校准的圆锥流量计只能在管道尺寸、粗糙度、β和雷诺数的规定范围内使用。ISO 5167的本部分不适用于脉动流量的测量。 它不包括在尺寸小于50 mm或大于500 mm的管道中，或管道雷诺数小于8×104或大于1.2×107的管道中使用未校准的圆锥流量计。 圆锥流量计是一种主要装置，由一个圆锥形限流器组成，该限流器同心固定在管道中心，圆锥体前端位于上游。ISO 5167本部分中定义的圆锥流量计的设计在壁上有一个或多个上游测压口，下游测压口位于圆锥的背面，与差压变送器的连接是一个孔，通过圆锥连接到支撑杆，然后向上通过支撑杆。 圆锥流量计的替代设计可用；然而，在撰写本文时，没有足够的数据来充分描述这些装置，因此，应根据第7条对这些仪表进行校准。

This document specifies the geometry and method of use (installation and operating conditions) of cone meters when they are inserted in a conduit running full to determine the flow rate of the fluid flowing in the conduit. As the uncertainty of an uncalibrated cone meter might be too high for a particular application, it might be deemed essential to calibrate the flow meter in accordance with Clause 7. This document also provides background information for calculating the flow rate and is applicable in conjunction with the requirements given in ISO 5167‑1. This document is applicable only to cone meters in which the flow remains subsonic throughout the measuring section and where the fluid can be considered as single-phase. Uncalibrated cone meters can only be used within specified limits of pipe size, roughness, β, and Reynolds number, Re. This document is not applicable to the measurement of pulsating flow. It does not cover the use of uncalibrated cone meters in pipes sized less than 50 mm or more than 500 mm, or where the pipe Reynolds numbers are below 8 × 104 or greater than 1,2 × 107. A cone meter is a primary device which consists of a cone-shaped restriction held concentrically in the centre of the pipe with the nose of the cone upstream. The design of cone meter defined in this document has one or more upstream pressure tappings in the wall, and a downstream pressure tapping positioned in the back face of the cone with the connection to a differential pressure transmitter being a hole through the cone to the support bar, and then up through the support bar. Alternative designs of cone meters are available; however, at the time of writing, there is insufficient data to fully characterize these devices, and therefore, these meters shall be calibrated in accordance with Clause 7.