NF EN ISO 6974-3

NF EN ISO 6974-3

August 2003
Standard Cancelled

Natural gas - Determination of composition with defined uncertainty by gas chromatography - Part 3 : determination of hydrogen, helium, inert gases and hydrocarbons up to C8 using two packed columns

L'ISO 6974-3:2000 décrit une méthode par chromatographie en phase gazeuse pour la détermination quantitative de la teneur en hélium, en hydrogène, en oxygène, en azote, en dioxyde de carbone et en hydrocarbures de C1 à C8 d'échantillons de gaz naturel, à l'aide de deux colonnes remplies. Cette méthode est applicable aux analyses réalisées dans des processus en continu ou en laboratoire.L'ISO 6974-3:2000 n'est applicable que conjointement avec l'ISO 6974-1 et l'ISO 6974-2.

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Main informations

Collections

National standards and national normative documents

Publication date

August 2003

Number of pages

23 p.

Reference

NF EN ISO 6974-3

ICS Codes

75.060   Natural gas

Classification index

X20-510-3

Print number

1 - 13/11/2003

International kinship

ISO 6974-3:2000

European kinship

EN ISO 6974-3:2001
Sumary
Natural gas - Determination of composition with defined uncertainty by gas chromatography - Part 3 : determination of hydrogen, helium, inert gases and hydrocarbons up to C8 using two packed columns

L'ISO 6974-3:2000 décrit une méthode par chromatographie en phase gazeuse pour la détermination quantitative de la teneur en hélium, en hydrogène, en oxygène, en azote, en dioxyde de carbone et en hydrocarbures de C1 à C8 d'échantillons de gaz naturel, à l'aide de deux colonnes remplies. Cette méthode est applicable aux analyses réalisées dans des processus en continu ou en laboratoire.

L'ISO 6974-3:2000 n'est applicable que conjointement avec l'ISO 6974-1 et l'ISO 6974-2.

Standard replaced by (1)
NF EN ISO 6974-3
November 2018
Standard Current
Natural gas - Determination of composition and associated uncertainty by gas chromatography - Part 3 : Precision and bias

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.

Table of contents
  • Avant-propos
    iv
  • Introduction
    v
  • 1 Domaine d'application
    1
  • 2 Références normatives
    1
  • 3 Principe
    2
  • 4 Matériels 2
  • 5 Appareillage 3
  • 6 Mode opératoire
    6
  • 7 Expression des résultats
    9
  • 8 Rapport d'essai
    10
  • Annexe A (informative) Système de chromatographie en phase gazeuse avec un seul four et deux colonnes
    11
  • Annexe B (informative) Valeurs types de fidélité 14
  • Bibliographie
    15
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