NF EN 24185
NF EN 24185

NF EN 24185

May 1994
Standard Current

Measurement of liquid flow in closed conduits. Weighing method.

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Main informations

Collections

National standards and national normative documents

Publication date

May 1994

Number of pages

28 p.

Reference

NF EN 24185

ICS Codes

17.120.10   Flow in closed conduits

Classification index

X10-138

Print number

1 - mai 1994

International kinship

ISO 4185:1980

European kinship

EN 24185:1993
Replaced standards (1)
NF X10-138
NF X10-138
September 1983
Standard Cancelled
Measurement of liquid flow in closed conduits. Weighing method.

Table of contents
  • 1 Généralités
    1
  • 1.1 Objet et domaine d'application
    1
  • 1.2 Références
    1
  • 1.3 Définitions
    1
  • 1.4 Unités
    1
  • 1.5 Notation
    2
  • 1.6 Agrément
    2
  • 2 Principe
    2
  • 2.1 Exposé du principe
    2
  • 2.2 Précision de la méthode
    7
  • 3 Appareillage
    7
  • 3.1 Partiteur
    7
  • 3.2 Appareillage de mesure du temps
    8
  • 3.3 Cuve de pesée
    9
  • 3.4 Bascule
    9
  • 3.5 Mesures auxiliaires
    9
  • 4 Mode opératoire
    10
  • 4.1 Méthode de pesée statique
    10
  • 4.2 Méthode de pesée dynamique
    10
  • 4.3 Dispositions communes
    10
  • 5 Calcul du débit
    10
  • 5.1 Calcul du débit-masse
    10
  • 5.2 Calcul du débit-volume
    10
  • 6 Calcul de l'erreur limite globale sur une mesure de débit
    10
  • 6.1 Présentation des résultats
    10
  • 6.2 Sources d'erreurs
    11
  • 6.3 Calcul de l'erreur limite sur la mesure du débit
    14
  • Annexes
  • A Corrections de mesurage du temps de remplissage
    16
  • B Masse volumique de l'eau pure
    18
  • C Définition des termes et méthodes utilisés dans l'analyse des erreurs
    19
  • D Loi du t de Student
    21
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