NF ISO 6358-1

NF ISO 6358-1

August 2013
Standard Current

Pneumatic fluid power - Determination of flow-rate characteristics of components using compressible fluids - Part 1 : general rules and test methods for steady-state flow

ISO 6358-1:2013 specifies a steady-state method for testing pneumatic fluid power components that use compressible fluids, i.e. gases, and that have internal flow paths that can be either fixed or variable in size, to determine their flow-rate characteristics. ISO 6358-1:2013 does not apply to components whose flow coefficient is unstable during use, i.e. components that exhibit remarkable hysteretic behaviour (because they can contain flexible parts that deform under the flow) or that have an internal feedback phenomenon (such as regulators). In addition, it does not apply to components that exchange energy with the fluid during flow-rate measurement, e.g. cylinders, accumulators, etc.ISO 6358-1:2013 specifies requirements for the test installation, the test procedure, and the presentation of results for the steady-state method.

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Main informations

Collections

National standards and national normative documents

Publication date

August 2013

Number of pages

69 p.

Reference

NF ISO 6358-1

ICS Codes

23.100.01   Fluid power systems in general

Classification index

E49-160-1

Print number

1 - 17/07/2013

International kinship

ISO 6538-1:2013
Sumary
Pneumatic fluid power - Determination of flow-rate characteristics of components using compressible fluids - Part 1 : general rules and test methods for steady-state flow

ISO 6358-1:2013 specifies a steady-state method for testing pneumatic fluid power components that use compressible fluids, i.e. gases, and that have internal flow paths that can be either fixed or variable in size, to determine their flow-rate characteristics. ISO 6358-1:2013 does not apply to components whose flow coefficient is unstable during use, i.e. components that exhibit remarkable hysteretic behaviour (because they can contain flexible parts that deform under the flow) or that have an internal feedback phenomenon (such as regulators). In addition, it does not apply to components that exchange energy with the fluid during flow-rate measurement, e.g. cylinders, accumulators, etc.

ISO 6358-1:2013 specifies requirements for the test installation, the test procedure, and the presentation of results for the steady-state method.

Replaced standards (1)
NF E49-300
September 2000
Standard Cancelled
Pneumatic fluid power - Method of characterization of air debit coefficients by drains reservoir

Le présent document définit la méthode d'essai permettant de caractériser les composants pneumatiques en l'absence de compresseur d'air adéquat.

Table of contents
  • Avant-propos
    iv
  • Introduction
    v
  • 1 Domaine d'application
    1
  • 2 Références normatives
    2
  • 3 Termes et définitions
    2
  • 3.1 Termes et définitions concernant les pressions
    2
  • 3.2 Termes et définitions concernant la température
    3
  • 3.3 Termes et définitions concernant l'écoulement
    3
  • 3.4 Termes et définitions concernant les caractéristiques de débit
    3
  • 3.5 Termes et définitions divers
    4
  • 4 Symboles et unités
    4
  • 5 Installation d'essai
    5
  • 5.1 Circuit d'essai pour l'essai de pression amont constante
    6
  • 5.2 Circuit d'essai pour l'essai de pression amont variable
    6
  • 5.3 Exigences générales
    7
  • 5.4 Tubes de mesure de pression (éléments 6 et 10)
    8
  • 5.5 Connecteurs de transition (éléments 7 et 9)
    9
  • 5.6 Exigences particulières
    13
  • 6 Modes opératoires d'essai
    14
  • 6.1 Conditions d'essai
    14
  • 6.2 Modes opératoires de mesure
    15
  • 6.3 Calcul des caractéristiques
    17
  • 7 Présentation des résultats des essais
    19
  • 8 Mention d'identification (référence à la présente partie de l'ISO 6358)
    20
  • Annexe A (normative) Autre mode opératoire d'essai
    21
  • Annexe B (normative) Étalonnage du débitmètre
    24
  • Annexe C (informative) Évaluation de l'incertitude de mesure
    26
  • Annexe D (informative) Observations sur l'erreur dans les résultats d'essais
    31
  • Annexe E (informative) Équations et représentations graphiques des caractéristiques de débit
    41
  • Annexe F (informative) Utilisation d'unités pratiques
    46
  • Annexe G (informative) Résultats de tests effectués sur des composants pneumatiques disponibles dans le commerce
    47
  • Annexe H (informative) Modes opératoires de calcul du rapport de contre-pression critique, b,et de l'indice subsonique, m, par la méthode des moindres carrés en utilisant la fonction "Solveur" de Microsoft Excel
    57
  • Bibliographie
    61
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