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EVS-EN ISO 6145-4:2008

Gas analysis - Preparation of calibration gas mixtures using dynamic volumetric methods - Part 4: Continuous syringe injection method

General information

Valid from 07.10.2008
Base Documents
ISO 6145-4:2004; EN ISO 6145-4:2008
ICS Groups
71.040.40 Chemical analysis
Directives or regulations
None

Standard history

Status
Date
Type
Name
07.10.2008
Main
EVS-EN ISO 6145-4:2008
This part of ISO 6145 specifies a method for continuous production of calibration gas mixtures, containing twoor more components, from pure gases or other gas mixtures by continuous injection of the calibrationcomponent(s) into a complementary gas stream by means of a syringe.If pre-mixed gases are used instead of pure gases (see Annex A), much lower volume fractions can beobtained. The volume flow rates, from which the volume fractions are determined, can be calculated from theindividual flow rates and can be independently measured by a suitable method given in ISO 6145-1.

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Standard monitoring
English (PDF 232 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