Gas analysis - Preparation of calibration gas mixtures - Gravimetric method (ISO 6142:2001)

Specifies the gravimetric method for the preparation of reference gas mixtures in cylinders and is intended for the preparation of calibration gas mixtures whose target accuracy is defined a priori. It is applicable only to mixtures of gaseous, or totally vaporized components which do not react with each other or with the cylinder walls. A procedure is given for the preparation strategy that is based upon preset uncertainty levels of the composition of the final mixture. Multi-component gas mixtures and multiple dilution mixtures are included in this standard and are considered to be special cases of single component weighings.

Gasanalyse - Herstellung von Prüfgasen - Wägeverfahren (ISO 6142:2001)

Diese Internationale Norm legt ein gravimetrisches Verfahren für die Herstellung von Kalibriergasgemischen
in Gasflaschen, von denen die Zielgenauigkeit der Zusammensetzung vorgegeben ist. Es ist nur auf
Gemische von gasförmigen oder vollständig verdampften Komponenten anwendbar, die weder miteinander
noch mit den Flaschenwänden reagieren. Es wird ein Herstellungsverfahren angegeben, das den
Anforderungen an die Zusammensetzung des Endgasgemisches innerhalb vorher festgelegter Unsicherheits-niveaus
zu liegen, genügt. Mehrkomponenten-Gasgemische (einschließlich Erdgas) und Mehrfachver-dünnungsgemische
sind in dieser Internationalen Norm ebenfalls enthalten und werden als Spezialfälle der
gravimetrischen Herstellungsmethode für Einzelkomponenten betrachtet.
Diese Internationale Norm beschreibt auch das Verfahren zur Verifizierung der Zusammensetzung von
gravimetrisch hergestellten Kalibriergasen. Unter der Voraussetzung, dass bei der Herstellung und
Validierung dieser gravimetrischen Gasgemische strenge und umfangreiche Qualitätssicherungs- und
Qualitätskontrollverfahren übernommen werden, können für eine große Palette von Gasgemischen
Kalibriergase höchster Genauigkeit im Vergleich zu anderen Herstellungsmethoden für solche Gase erhalten
werden.

Analyse des gaz - Préparation des mélanges de gaz pour étalonnage - Méthode gravimétrique (ISO 6142:2001)

L'ISO 6142:2001 spécifie une méthode gravimétrique de préparation des mélanges de gaz pour étalonnage dans des bouteilles dont l'exactitude de la composition a été prédéfinie. Elle est applicable uniquement aux mélanges de composants gazeux ou totalement vaporisés qui ne réagissent pas entre eux ou au contact des parois de bouteilles. Un mode opératoire pour une méthode de préparation est fourni avec un certain nombre d'exigences à respecter pour que la composition finale des mélanges gazeux se situe dans les niveaux d'incertitude préétablis. Les mélanges gazeux à plusieurs constituants (y compris le gaz naturel) et les mélanges à dilution multiple sont inclus dans l'ISO 6142:2001 et sont considérés comme des cas particuliers de la méthode de préparation gravimétrique à un seul constituant.
L'ISO 6142:2001 décrit également la méthode de vérification de la composition des gaz pour étalonnage préparés par voie gravimétrique. Sous réserve de l'adoption, au cours de la préparation et de la validation de ces mélanges gazeux gravimétriques, de procédures rigoureuses et exhaustives d'assurance et de contrôle de la qualité, des gaz pour étalonnage de haute exactitude peuvent être obtenus pour une large gamme de mélanges gazeux, en comparaison avec d'autres méthodes de préparation pour ces mêmes gaz.

Analiza plinov - Priprava kalibrirnih plinskih zmesi - Gravimetrijska metoda (ISO 6142:2001)

General Information

Status
Withdrawn
Publication Date
22-Aug-2006
Withdrawal Date
08-Sep-2015
Current Stage
9960 - Withdrawal effective - Withdrawal
Completion Date
09-Sep-2015

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SLOVENSKI STANDARD
SIST EN ISO 6142:2006
01-november-2006
Analiza plinov - Priprava kalibrirnih plinskih zmesi - Gravimetrijska metoda (ISO
6142:2001)
Gas analysis - Preparation of calibration gas mixtures - Gravimetric method (ISO
6142:2001)
Gasanalyse - Herstellung von Prüfgasen - Wägeverfahren (ISO 6142:2001)
Analyse des gaz - Préparation des mélanges de gaz pour étalonnage - Méthode
gravimétrique (ISO 6142:2001)
Ta slovenski standard je istoveten z: EN ISO 6142:2006
ICS:
71.040.40 Kemijska analiza Chemical analysis
SIST EN ISO 6142:2006 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 6142:2006

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SIST EN ISO 6142:2006
EUROPEAN STANDARD
EN ISO 6142
NORME EUROPÉENNE
EUROPÄISCHE NORM
August 2006
ICS 71.040.40

English Version
Gas analysis - Preparation of calibration gas mixtures -
Gravimetric method (ISO 6142:2001)
Analyse des gaz - Préparation des mélanges de gaz pour Gasanalyse - Herstellung von Prüfgasen - Wägeverfahren
étalonnage - Méthode gravimétrique (ISO 6142:2001) (ISO 6142:2001)
This European Standard was approved by CEN on 21 July 2006.
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 Central Secretariat 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 Central Secretariat has the same status as the official
versions.
CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,
Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania,
Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2006 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 6142:2006: E
worldwide for CEN national Members.

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SIST EN ISO 6142:2006
EN ISO 6142:2006 (E)



Foreword

The text of ISO 6142:2001 has been prepared by Technical Committee ISO/TC 158 "Analysis
of gases” of the International Organization for Standardization (ISO) and has been taken over
as EN ISO 6142:2006 by Technical Committee CEN/SS N21 "Gaseous fuels and combustible
gas", the secretariat of which is held by CMC.

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 February 2007, and conflicting national
standards shall be withdrawn at the latest by February 2007.

According to the CEN/CENELEC Internal Regulations, the national standards organizations of
the following countries are bound to implement this European Standard: Austria, Belgium,
Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary,
Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland,
Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.



Endorsement notice

The text of ISO 6142:2001 has been approved by CEN as EN ISO 6142:2006 without any
modifications.


2

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SIST EN ISO 6142:2006
INTERNATIONAL ISO
STANDARD 6142
Second edition
2001-04-01
Gas analysis — Preparation of calibration
gasmixtures—Gravimetric method
Analyse des gaz — Préparation des mélanges de gaz pour étalonnage —
Méthode gravimétrique
Reference number
ISO 6142:2001(E)
©
ISO 2001

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SIST EN ISO 6142:2006
ISO 6142:2001(E)
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