NF ISO 21018-3

NF ISO 21018-3

July 2008
Standard Current

Hydraulic fluid power - Monitoring the level of particulate contamination of the fluid - Part 3 : use of the filter blockage technique

ISO 21018-3:2008 specifies a method for the semi-quantitative determination of the particulate contamination level using the filter blockage technique (also known as the mesh-obscuration method or the pore-blockage technique) either on-line or off-line in containers. ISO 21018-3:2008 also defines procedures for calibrating the instruments and verifying their correct operation both in the laboratory and in service.In general, the techniques are suitable for monitoring the general cleanliness level in hydraulic systems, the progress in flushing operations and support equipment and test rigs.The use of ISO 21018-3:2008 is applicable to all single- or multi-phase liquid systems.

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Collections

National standards and national normative documents

Publication date

July 2008

Number of pages

23 p.

Reference

NF ISO 21018-3

ICS Codes

23.100.60   Filters, seals and contamination of fluids
75.120   Hydraulic fluids

Classification index

E48-661-3

Print number

1 - 15/07/2008

International kinship

ISO 21018-3:2008
Sumary
Hydraulic fluid power - Monitoring the level of particulate contamination of the fluid - Part 3 : use of the filter blockage technique

ISO 21018-3:2008 specifies a method for the semi-quantitative determination of the particulate contamination level using the filter blockage technique (also known as the mesh-obscuration method or the pore-blockage technique) either on-line or off-line in containers. ISO 21018-3:2008 also defines procedures for calibrating the instruments and verifying their correct operation both in the laboratory and in service.

In general, the techniques are suitable for monitoring the general cleanliness level in hydraulic systems, the progress in flushing operations and support equipment and test rigs.

The use of ISO 21018-3:2008 is applicable to all single- or multi-phase liquid systems.

Table of contents
  • Avant-propos
    iv
  • Introduction
    v
  • 1 Domaine d'application
    1
  • 2 Références normatives
    1
  • 3 Termes et définitions
    2
  • 4 Hygiène et sécurité
    2
  • 4.1 Généralités
    2
  • 4.2 Énergie électrique
    2
  • 4.3 Énergie mécanique hydraulique
    2
  • 4.4 Fluides de procédé
    2
  • 5 Principe de la technique de colmatage de filtre
    3
  • 6 Équipement
    3
  • 6.1 Généralités
    3
  • 6.2 Équipement pour l'étalonnage en ligne et en laboratoire et la vérification
    3
  • 7 Modes opératoires
    5
  • 7.1 Généralités
    5
  • 7.2 Prélèvement dans une conduite sous pression
    5
  • 7.3 Mode opératoire de prélèvement dans un réservoir du système
    6
  • 7.4 Prélèvement dans un conteneur vraquier
    6
  • 7.5 Prélèvement dans un flacon de prélèvement
    7
  • 8 Mode opératoire d'étalonnage et de vérification
    8
  • 8.1 Généralités
    8
  • 8.2 Équipement requis
    8
  • 8.3 Modes opératoires préliminaires
    8
  • 8.4 Préparation de l'échantillon de poussière d'essai
    9
  • 8.5 Mode opératoire d'étalonnage/de vérification en ligne
    10
  • 8.6 Vérification du bon fonctionnement
    11
  • 9 Étalonnage et/ou vérification
    11
  • 10 Rapport d'essai
    13
  • 11 Déclaration d'identification
    13
  • Annexe A (informative) Exemples d'utilisation et d'applicabilité de la technique de colmatage de filtre
    14
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