NF EN ISO 15112

NF EN ISO 15112

May 2014
Standard Cancelled

Natural gas - Energy determination

ISO 15112:2011 provides the means for energy determination of natural gas by measurement or by calculation, and describes the related techniques and measures that are necessary to take. The calculation of thermal energy is based on the separate measurement of the quantity, either by mass or by volume, of gas transferred and its measured or calculated calorific value. The general means of calculating uncertainties are also given. Only systems currently in use are described. ISO 15112:2011 applies to any gas-measuring station from domestic to very large high-pressure transmission. New techniques are not excluded, provided their proven performance is equivalent to, or better than, that of those techniques referred to in ISO 15112:2011. Gas-measuring systems are not the subject of ISO 15112:2011.

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Main informations

Collections

National standards and national normative documents

Publication date

May 2014

Number of pages

76 p.

Reference

NF EN ISO 15112

ICS Codes

75.060   Natural gas

Classification index

X20-516

Print number

1

International kinship

European kinship

EN ISO 15112:2014
Sumary
Natural gas - Energy determination

ISO 15112:2011 provides the means for energy determination of natural gas by measurement or by calculation, and describes the related techniques and measures that are necessary to take. The calculation of thermal energy is based on the separate measurement of the quantity, either by mass or by volume, of gas transferred and its measured or calculated calorific value. The general means of calculating uncertainties are also given.

Only systems currently in use are described.

ISO 15112:2011 applies to any gas-measuring station from domestic to very large high-pressure transmission.

New techniques are not excluded, provided their proven performance is equivalent to, or better than, that of those techniques referred to in ISO 15112:2011.

Gas-measuring systems are not the subject of ISO 15112:2011.

Standard replaced by (1)
NF EN ISO 15112
December 2018
Standard Current
Natural gas - Energy determination

<p>This document provides the means for energy determination of natural gas by measurement or by calculation, and describes the related techniques and measures that are necessary to take. The calculation of thermal energy is based on the separate measurement of the quantity, either by mass or by volume, of gas transferred and its measured or calculated calorific value. The general means of calculating uncertainties are also given.</p> <p>Only systems currently in use are described.</p> <p>NOTE Use of such systems in commercial or official trade can require the approval of national authorization agencies, and compliance with legal regulations is required.</p> <p>This document applies to any gas-measuring station from domestic to very large high-pressure transmission.</p> <p>New techniques are not excluded, provided their proven performance is equivalent to, or better than, that of those techniques referred to in this document.</p> <p>Gas-measuring systems are not the subject of this document.</p>

Table of contents
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  • Avant-propos
    v
  • Introduction
    vi
  • 1 Domaine d'application
    1
  • 2 Références normatives
    1
  • 3 Termes et définitions
    1
  • 4 Symboles et unités
    6
  • 5 Principes généraux
    7
  • 6 Mesurage du gaz
    8
  • 7 Détermination de l'énergie
    12
  • 8 Stratégie et modes opératoires
    17
  • 9 Méthodes d'affectation
    25
  • 10 Calcul des quantités d'énergie
    30
  • 11 Exactitude au niveau du calcul de l'énergie
    33
  • 12 Contrôle de la qualité et assurance de la qualité
    36
  • Annexe A (informative) Principaux instruments et techniques de détermination de l'énergie
    38
  • Annexe B (informative) Différentes évolutions possibles du pouvoir calorifique
    43
  • Annexe C (informative) Conversion de volume et conversion de volume en masse
    46
  • Annexe D (informative) Détermination incrémentale de l'énergie
    47
  • Annexe E (informative) Exemple pratique de conversion de volume et de calcul de la quantité d'énergie
    49
  • Annexe F (informative) Exemples pratiques de calcul du pouvoir calorifique moyen en raison des différentes conditions de livraison
    53
  • Annexe G (informative) Moyens de détermination des valeurs de remplacement
    58
  • Annexe H (informative) Exemple de graphique de contrôle de vraisemblance
    60
  • Annexe I (informative) Exemple de graphique portant sur les données brutes, la correction des erreurs de justesse et le résultat final
    61
  • Annexe J (informative) Détermination du pouvoir calorifique provenant d'un réservoir unique
    63
  • Bibliographie
    65
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