EN ISO 6974-3:2018

Natural gas - Determination of composition and associated uncertainty by gas chromatography - Part 3: Precision and bias (ISO 6974-3:2018)

This document describes the precision that can be expected from the gas chromatographic method that is set up in accordance with ISO 6974-1. The stated precision provides values for the magnitude of variability that can be expected between test results when the method described in ISO 6974-1 is applied in one or more competent laboratories. This document also gives guidance on the assessment of bias.

Erdgas - Bestimmung der Zusammensetzung und der zugehörigen Unsicherheit durch Gaschromatographie - Teil 3: Präzision und Bias (ISO 6974-3:2018)

Gaz naturel - Détermination de la composition et de l'incertitude associée par chromatographie en phase gazeuse - Partie 3: Fidélité et biais (ISO 6974-3:2018)

Le présent document décrit la fidélité que l'on peut attendre d'une méthode par chromatographie en phase gazeuse, mise en place conformément à l'ISO 6974-1. La fidélité déterminée permet d'évaluer l'étendue de la variabilité envisageable entre les résultats des essais, lorsque la méthode décrite dans l'ISO 6974-1 est appliquée dans un ou plusieurs laboratoires compétents. Le présent document donne également des recommandations quant à l'évaluation du biais.

Zemeljski plin - Določevanje sestave s plinsko kromatografijo in s tem povezana negotovost - 3. del: Natančnost in odstopanje (ISO 6974-3:2018)

Ta dokument opisuje natančnost, ki jo je mogoče pričakovati pri metodi plinske kromatografije, pripravljene v skladu s standardom ISO 6974-1. Navedena natančnost zagotavlja vrednosti za obseg variabilnosti, ki ga je mogoče pričakovati med rezultati preskusa, ko se metoda, opisana v standardu ISO 6974-1, uporablja v enem ali več merodajnih laboratorijih. Ta dokument podaja tudi smernice za ocenjevanje
odstopanja.

General Information

• Status: Published
• Publication Date: 27-Nov-2018
• Withdrawal Date: 30-May-2019
• ICS: 75.060 - Natural gas
• Technical Committee: CEN/TC 238 - Test gases, test pressures and categories of appliances
• Drafting Committee: CEN/SS N21 - Gaseous fuels and combustible gas
• Current Stage: 6060 - Definitive text made available (DAV) - Publishing
• Start Date: 28-Nov-2018
• Completion Date: 28-Nov-2018
• Ref Project: SIST EN ISO 6974-3:2019 - Natural gas - Determination of composition and associated uncertainty by gas chromatography - Part 3: Precision and bias (ISO 6974-3:2018)

Relations

• Replaces: EN ISO 6974-3:2001 - Natural gas - Determination of composition with defined uncertainty by gas chromatography - Part 3: Determination of hydrogen, helium, oxygen, nitrogen, carbon dioxide and hydrocarbons up to C8 using two packed columns (ISO 6974-3:2000)
• Effective Date: 05-Dec-2018

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN ISO 6974-3:2019
01-marec-2019
1DGRPHãþD
SIST EN ISO 6974-3:2001
=HPHOMVNLSOLQ'RORþHYDQMHVHVWDYHVSOLQVNRNURPDWRJUDILMRLQVWHPSRYH]DQD
QHJRWRYRVWGHO1DWDQþQRVWLQRGVWRSDQMH,62
Natural gas - Determination of composition and associated uncertainty by gas
chromatography - Part 3: Precision and bias (ISO 6974-3:2018)
Erdgas - Bestimmung der Zusammensetzung und der zugehörigen Unsicherheit durch
Gaschromatographie - Teil 3: Präzision und Bias (ISO 6974-3:2018)
Gaz naturel - Détermination de la composition et de l'incertitude associée par
chromatographie en phase gazeuse - Partie 3: Fidélité et biais (ISO 6974-3:2018)
Ta slovenski standard je istoveten z: EN ISO 6974-3:2018
ICS:
71.040.50 Fizikalnokemijske analitske Physicochemical methods of
metode analysis
75.060 Zemeljski plin Natural gas
SIST EN ISO 6974-3:2019 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 6974-3:2019

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SIST EN ISO 6974-3:2019


EN ISO 6974-3
EUROPEAN STANDARD

NORME EUROPÉENNE

November 2018
EUROPÄISCHE NORM
ICS 75.060 Supersedes EN ISO 6974-3:2001
English Version

Natural gas - Determination of composition and associated
uncertainty by gas chromatography - Part 3: Precision and
bias (ISO 6974-3:2018)
Gaz naturel - Détermination de la composition et de Erdgas - Bestimmung der Zusammensetzung und der
l'incertitude associée par chromatographie en phase zugehörigen Unsicherheit durch Gaschromatographie -
gazeuse - Partie 3: Fidélité et biais (ISO 6974-3:2018) Teil 3: Präzision und Bias (ISO 6974-3:2018)
This European Standard was approved by CEN on 14 November 2018.

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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, 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
© 2018 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 6974-3:2018 E
worldwide for CEN national Members.

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SIST EN ISO 6974-3:2019
EN ISO 6974-3:2018 (E)
Contents Page
European foreword . 3

2

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SIST EN ISO 6974-3:2019
EN ISO 6974-3:2018 (E)
European foreword
This document (EN ISO 6974-3:2018) has been prepared by Technical Committee ISO/TC 193 "Natural
gas" in collaboration with Technical Committee CEN/TC 238 “Test gases, test pressures, appliance
categories and gas appliance types” the secretariat of which is held by AFNOR.
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 May 2019, and conflicting national standards shall be
withdrawn at the latest by May 2019.
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 6974-3:2001.
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, Former Yugoslav Republic of Macedonia,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,
Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
Endorsement
...