标准编号：ISO 17089-1:2010
中文名称：封闭管道中流体流量的测量 气体用超声波测量仪 第1部分：密闭输送和分配测量用测量仪
英文名称：Measurement of fluid flow in closed conduits - Ultrasonic meters for gas — Part 1: Meters for custody transfer and allocation measurement
发布日期：2010-11
标准范围
This part of ISO 17089 specifies requirements and recommendations for ultrasonic gas flowmeters (USMs), which utilize the transit time of acoustic signals to measure the flow of single phase homogenous gases in closed conduits.This part of ISO 17089 applies to transit time ultrasonic gas flowmeters used for custody transfer and allocation metering, such as full-bore, reduced-area, high-pressure, and low-pressure meters or any combination of these. There are no limits on the minimum or maximum sizes of the meter. This part of ISO 17089 can be applied to the measurement of almost any type of gas, such as air, natural gas, and ethane.Included are flow measurement performance requirements for meters of two accuracy classes suitable for applications such as custody transfer and allocation measurement.This part of ISO 17089 specifies construction, performance, calibration, and output characteristics of ultrasonic meters for gas flow measurement and deals with installation conditions.NOTE It is possible that national or other regulations apply which can be more stringent than those in this part of ISO 17089.
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