NF ISO 11943

NF ISO 11943

February 2000
Standard Cancelled

Hydraulic fluid power - On-line liquid automatic particle-counting systems for liquid - Methods of calibration and validation

Le présent document établit un procédé d'étalonnage et de validation pour la mise en oeuvre d'un comptage automatique en ligne des particules en suspension dans les liquides.

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Main informations

Collections

National standards and national normative documents

Publication date

February 2000

Number of pages

36 p.

Reference

NF ISO 11943

ICS Codes

23.100.60   Filters, seals and contamination of fluids

Classification index

E48-682

Print number

1 - 06/03/2006

International kinship

ISO 11943:1999
Sumary
Hydraulic fluid power - On-line liquid automatic particle-counting systems for liquid - Methods of calibration and validation

Le présent document établit un procédé d'étalonnage et de validation pour la mise en oeuvre d'un comptage automatique en ligne des particules en suspension dans les liquides.
Standard replaced by (1)
NF ISO 11943
June 2019
Standard Cancelled
Hydraulic fluid power - On-line automatic particle-counting systems for liquids - Methods of calibration and validation

<p>This document establishes methods to:</p> <p>— validate equipment used to prepare secondary calibration suspensions for automatic particle counters;</p> <p>— perform online secondary calibration of automatic particle counters;</p> <p>— match two or more online particle counters, i.e. to count the same number of particles at a given size by two APCs associated on line;</p> <p>— validate online particle counting systems with and without online dilution as used, for example, to measure the filtration efficiency of a hydraulic filter as described in the multipass filter test in ISO 16889.</p>

Table of contents
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  • 1 Domaine d'application
    1
  • 2 Références normatives
    1
  • 3 Termes et définitions
    1
  • 4 Unités de mesure
    2
  • 5 Condition préalable
    2
  • 6 Appareillage d'essai
    2
  • 7 Précision des instruments de mesure et conditions d'essai
    3
  • 8 Mode opératoire d'étalonnage primaire en laboratoire
    3
  • 9 Validation de l'équipement de préparation en ligne des échantillons et détermination d'une norme d'étalonnage secondaire
    3
  • 10 Mode opératoire d'étalonnage et de vérification secondaires en ligne
    7
  • 11 Validation du système de dilution en ligne
    10
  • 12 Précautions
    12
  • 13 Déclaration d'identification
    13
  • Annexe A (informative) Lignes directrices pour la conception d'un système type d'étalonnage et de validation en ligne
    14
  • Annexe B (informative) Lignes directrices relatives à la conception d'un circuit hydraulique pour l'adaptation d'un compteur en ligne sur un banc d'essai en circuit fermé
    16
  • Annexe C (informative) Résumé de l'essai interiaboratoire ISO relatif à l'étalonnage et à la validation en ligne
    20
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