NF ISO 17089-1

NF ISO 17089-1

April 2011
Standard Cancelled

Measurement of fluid flow in closed conduits - Ultrasonic meters for gas - Part 1 : meters for custody transfer and allocation measurement

ISO 17089-1:2010 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.ISO 17089-1:2010 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. ISO 17089-1:2010 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.ISO 17089-1:2010 specifies construction, performance, calibration, and output characteristics of ultrasonic meters for gas flow measurement and deals with installation conditions.

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Main informations

Collections

National standards and national normative documents

Publication date

April 2011

Number of pages

111 p.

Reference

NF ISO 17089-1

ICS Codes

17.120.10   Flow in closed conduits

Classification index

X10-122-1

Print number

1 - 07/04/2011

International kinship

Sumary
Measurement of fluid flow in closed conduits - Ultrasonic meters for gas - Part 1 : meters for custody transfer and allocation measurement

ISO 17089-1:2010 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.

ISO 17089-1:2010 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. ISO 17089-1:2010 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.

ISO 17089-1:2010 specifies construction, performance, calibration, and output characteristics of ultrasonic meters for gas flow measurement and deals with installation conditions.

Standard replaced by (1)
NF ISO 17089-1
June 2020
Standard Current
Measurement of fluid flow in closed conduits - Ultrasonic meters for gas - Part 1 : meters for custody transfer and allocation measurement

This document 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 document 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 document 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 document specifies construction, performance, calibration, diagnostics for meter verification, 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 document.

Table of contents
  • Avant-propos
    iv
  • Introduction
    v
  • 1 Domaine d'application
    1
  • 2 Références normatives
    1
  • 3 Termes, définitions et symboles
    2
  • 4 Principes de mesure
    8
  • 5 Caractéristiques du compteur
    21
  • 6 Essais et étalonnage
    38
  • 7 Historique d'expertise et pratique de fonctionnement
    48
  • 8 Caractérisation et bruit des vannes dans un poste de comptage et de régulation
    57
  • Annexe A (informative) Enregistrement des bandes d'erreur
    64
  • Annexe B (informative) Calcul et correction des erreurs du compteur à ultrasons
    66
  • Annexe C (informative) Méthode du compteur de référence pour des compteurs à ultrasons en série
    70
  • Annexe D (informative) Documents
    76
  • Annexe E (informative) Calcul détaillé des corrections de température et de pression liées à la géométrie
    78
  • Annexe F (informative) Essais de perturbation
    99
  • Bibliographie
    101
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