EN ISO 6145-1:2019
(Main)Gas analysis - Preparation of calibration gas mixtures using dynamic methods - Part 1: General aspects (ISO 6145-1:2019)
Gas analysis - Preparation of calibration gas mixtures using dynamic methods - Part 1: General aspects (ISO 6145-1:2019)
This document gives a brief overview of each of the dynamic techniques which are described in detail in the subsequent parts of ISO 6145. This document provides basic information to support an informed choice for one or another method for the preparation of calibration gas mixtures. It also describes how these methods can be linked to national measurement standards to establish metrological traceability for the composition of the prepared gas mixtures.
Since all techniques are dynamic and rely on flow rates, this document describes the calibration process by measurement of each individual flow rate generated by the device.
Methods are also provided for assessing the composition of the generated gas mixtures by comparison with an already validated calibration gas mixture.
This document provides general requirements for the use and operation of dynamic methods for gas mixture preparation. It also includes the necessary expressions for calculating the calibration gas composition and its associated uncertainty.
Gas mixtures obtained by these dynamic methods can be used to calibrate or control gas analysers.
The storage of dynamically prepared gas mixtures into bags or cylinders is beyond the scope of this document.
Gasanalyse - Herstellung von Kalibriergasgemischen mit Hilfe von dynamischen Verfahren - Teil 1: Allgemeine Aspekte (ISO 6145-1:2019)
Dieses Dokument gibt eine kurze Übersicht über jedes der dynamischen Verfahren, die in den nachfolgenden Teilen von ISO 6145 ausführlich beschrieben werden. Dieses Dokument enthält grundlegende Informationen, um eine fundierte Auswahl des einen oder anderen Verfahrens zur Herstellung von Kalibriergasgemischen zu unterstützen. Es beschreibt auch, wie diese Verfahren mit nationalen Normalen in Verbindung gebracht werden können, um die metrologische Rückführbarkeit der Zusammensetzung der hergestellten Gasgemische zu erreichen.
Da alle Verfahren dynamisch sind und auf Durchflussraten beruhen, beschreibt dieses Dokument den Kalibrierprozess durch Messung jedes einzelnen durch das Gerät erzeugten Durchflusses.
Es werden auch Verfahren zur Bewertung der Zusammensetzung der erzeugten Gasgemische durch den Vergleich mit einem bereits validierten Kalibriergasgemisch zur Verfügung gestellt.
Dieses Dokument enthält allgemeine Anforderungen für die Anwendung und den Betrieb dynamischer Verfahren für die Gasgemischherstellung. Es enthält auch die erforderlichen Ausdrücke zur Berechnung der Kalibriergaszusammensetzung und der damit verbundenen Unsicherheit.
Gasgemische, die durch diese dynamischen Verfahren erhalten werden, können verwendet werden, um Gasanalysegeräte zu kalibrieren oder zu überprüfen.
Die Speicherung von dynamisch hergestellten Gasgemischen in Beuteln oder Flaschen geht über den Anwendungsbereich dieses Dokuments hinaus.
Analyse des gaz - Préparation des mélanges de gaz pour étalonnage à l'aide de méthodes dynamiques - Partie 1 : Aspects généraux (ISO 6145-1:2019)
Le présent document donne un rapide aperçu de chacune des techniques dynamiques décrites en détail dans les parties ultérieures de l'ISO 6145. Le présent document fournit des informations de base pour permettre un choix informé de l'une des méthodes pour la préparation de mélanges de gaz pour étalonnage. Il décrit également comment ces méthodes peuvent être liées à des étalons de mesure nationaux pour établir une traçabilité métrologique de la composition des mélanges de gaz préparés.
Comme toutes les techniques sont dynamiques et reposent sur les débits, le présent document décrit le processus d'étalonnage par mesurage de chaque débit individuel généré par le dispositif.
Des méthodes sont également fournies pour évaluer la composition des mélanges de gaz générés par comparaison avec un mélange de gaz pour étalonnage déjà validé.
Le présent document fournit des exigences générales pour l'utilisation et l'application des méthodes dynamiques pour la préparation des mélanges de gaz. Il comprend également les expressions nécessaires pour le calcul de la composition du gaz d'étalonnage et de son incertitude associée.
Les mélanges de gaz obtenus par ces méthodes dynamiques peuvent être utilisés pour étalonner ou contrôler les analyseurs de gaz.
Le stockage des mélanges de gaz préparés dynamiquement dans des sacs ou des bouteilles n'appartient pas au domaine d'application du présent document.
Analiza plinov - Priprava kalibracijskih plinskih zmesi z uporabo dinamičnih metod - 1. del: Splošni vidiki (ISO 6145-1:2019)
V tem dokumentu je kratek pregled posameznih dinamičnih tehnik, ki so podrobno opisane v poznejših delih standarda ISO 6145. Ta dokument vsebuje osnovne informacije za podporo utemeljene odločitve glede uporabe ene ali druge odločitve za pripravo kalibracijskih plinskih zmesi. Opisuje tudi, kako je mogoče s povezavo teh metod in nacionalnih standardov merjenja vzpostaviti meroslovno sledljivost za sestavo pripravljenih plinskih zmesi. Ker so vse tehnike dinamične in temeljijo na stopnjah pretoka, ta dokument opisuje postopek kalibracije z merjenjem vsake posamezne stopnje pretoka, ki jo proizvede naprava. Podane so tudi metode za ocenjevanje sestave proizvedenih plinskih zmesi s primerjavo že potrjene kalibracijske plinske zmesi. Ta dokument podaja splošne zahteve za uporabo in delovanje dinamičnih metod za pripravo plinskih zmesi. Vključuje tudi potrebne izraze za izračun sestave kalibracijskega plina in povezane negotovosti. Plinske zmesi, pridobljene s temi dinamičnimi metodami, je mogoče uporabiti za kalibriranje oziroma nadzorovanje analizatorjev plinov. Shranjevanje dinamično pripravljenih plinskih zmesi v vrečke ali jeklenke presega področje uporabe tega dokumenta.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-december-2019
Nadomešča:
SIST EN ISO 6145-1:2008
Analiza plinov - Priprava kalibracijskih plinskih zmesi z uporabo dinamičnih metod
- 1. del: Splošni vidiki (ISO 6145-1:2019)
Gas analysis - Preparation of calibration gas mixtures using dynamic methods - Part 1:
General aspects (ISO 6145-1:2019)
Gasanalyse - Herstellung von Kalibriergasgemischen mit Hilfe von dynamische
Verfahren - Teil 1: Kalibrierverfahren (ISO 6145-1:2019)
Analyse des gaz - Préparation des mélanges de gaz pour étalonnage à l'aide de
méthodes dynamiques - Partie 1 : Aspects généraux (ISO 6145-1:2019)
Ta slovenski standard je istoveten z: EN ISO 6145-1:2019
ICS:
71.040.40 Kemijska analiza Chemical analysis
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN ISO 6145-1
EUROPEAN STANDARD
NORME EUROPÉENNE
October 2019
EUROPÄISCHE NORM
ICS 71.040.40 Supersedes EN ISO 6145-1:2008
English Version
Gas analysis - Preparation of calibration gas mixtures
using dynamic methods - Part 1: General aspects (ISO
6145-1:2019)
Analyse des gaz - Préparation des mélanges de gaz Gasanalyse - Herstellung von Kalibriergasgemischen
pour étalonnage à l'aide de méthodes dynamiques - mit Hilfe von dynamische Verfahren - Teil 1:
Partie 1 : Aspects généraux (ISO 6145-1:2019) Kalibrierverfahren (ISO 6145-1:2019)
This European Standard was approved by CEN on 1 September 2019.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2019 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 6145-1:2019 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
European foreword
This document (EN ISO 6145-1:2019) has been prepared by Technical Committee ISO/TC 158 "Analysis
of gases" in collaboration with Technical Committee CEN/SS N21 “Gaseous fuels and combustible gas”
the secretariat of which is held by CCMC.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by April 2020, and conflicting national standards shall be
withdrawn at the latest by April 2020.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN ISO 6145-1:2008.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the
United Kingdom.
Endorsement notice
The text of ISO 6145-1:2019 has been approved by CEN as EN ISO 6145-1:2019 without any
modification.
INTERNATIONAL ISO
STANDARD 6145-1
Third edition
2019-09
Gas analysis — Preparation of
calibration gas mixtures using
dynamic methods —
Part 1:
General aspects
Analyse des gaz — Préparation des mélanges de gaz pour étalonnage
à l'aide de méthodes dynamiques —
Partie 1: Aspects généraux
Reference number
ISO 6145-1:2019(E)
©
ISO 2019
ISO 6145-1:2019(E)
© ISO 2019
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ISO 6145-1:2019(E)
Contents Page
Foreword .v
Introduction .vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Symbols . 2
5 Principle . 2
5.1 General . 2
5.2 Suitability of the method to the application . 3
5.3 Piston pumps . 3
5.4 Continuous (syringe) injection . 4
5.5 Capillary . 4
5.6 Critical flow orifices . 4
5.7 Thermal mass flow controller . 5
5.8 Diffusion . 5
5.9 Saturation . 5
5.10 Permeation method . 6
5.11 Electrochemical generation . 6
5.12 Summary . 6
6 Recommendations for handling the dynamic system . 7
6.1 Safety considerations . 7
6.1.1 Reactions between mixture components . 7
6.1.2 Reactions with dynamic system materials . 8
6.2 Quality considerations . 8
6.2.1 Purity of parent gas standards or "zero" gas . 8
6.2.2 Gas handling . 8
7 Calibration methods of a dynamic system . 8
7.1 Generalities on the calibration . 8
7.2 Calibration of each element . 9
7.2.1 General. 9
7.2.2 Calibration devices for flow rate: Principle and uncertainty .10
7.3 Single point calibration of a dynamic system by comparison with reference gas
mixtures .13
7.4 Calibration certificate .13
8 Calculation of the composition and its uncertainty .13
8.1 General .13
8.2 Calculations for volumetric methods . .14
8.2.1 General.14
8.2.2 Formulae .14
8.3 Calculations for gravimetric methods .15
8.3.1 General.15
8.3.2 Formula .15
9 Sources of uncertainty and uncertainty of the final mixture .15
10 Verification .16
10.1 Principle .16
10.2 Verification criteria .
...
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