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EVS-EN ISO 9300:2005

Measurement of gas flow by means of critical flow Venturi nozzles

General information

Withdrawn from 15.07.2022
Base Documents
ISO 9300:2005; EN ISO 9300:2005
ICS Groups
17.120.10 Flow in closed conduits
Directives or regulations
None

Standard history

Status
Date
Type
Name
15.07.2022
Main
EVS-EN ISO 9300:2022
04.11.2005
Main
EVS-EN ISO 9300:2005
Main
EVS-EN ISO 9300:1999
This International Standard specifies the geometry and method of use (installation in a system and operating conditions) of critical flow Venturi nozzles (CFVN) used to determine the mass flow-rate of a gas flowing through a system. It also gives the information necessary for calculating the flow-rate and its associated uncertainty.

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Standard monitoring
English (PDF 248 KB)

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Standards designation

EVS Estonian standard
EN European standard (published by an CEN or CENELEC)
EN ISO International standard adopted as an European standard
ISO International Organization for Standardization’s standard
IEC International Electrotechnical Commission’s standard
HD CENELEC’s harmonisation document
   
EVS-EN European standard implemented in Estonia
EVS-EN ISO International standard adopted in Europe and implemented in Estonia
EVS-EN ISO/IEC International standard/International electrotechnical standard adopted in Europe and implemented in Estonia
EVS-IEC International electrotechnical standard implemented in Estonia
EVS-ISO International standard implemented in Estonia
   
A, AMD amedment
+A a full standard plus the amendment
/A only amendment
COR, AC corrigendum
+COR a full standard plus the corrigendum
NA national annex
+NA a full standard plus the national annex
/NA only national annex
TS technical specification
TR technical report
CWA agreement, developed by a CEN or CENELEC
prEVS-EN (etc) draft standard
   
et the standard is in Estonian only
en the standard is in English only
et-en the standard is in Parallel text Estonian-English