NF ISO 11500

NF ISO 11500

November 2008
Standard Cancelled

Hydraulic fluid power - Determination of the particulate contamination level of a liquid sample by automatic particle counting using the light-extinction principle

ISO 11500:2008 specifies an automatic particle-counting procedure for determining the number and sizes of particles present in hydraulic-fluid bottle samples of clear, homogeneous, single-phase liquids using an automatic particle counter (APC) that works on the light-extinction principle.ISO 11500:2008 is applicable to the monitoring of the cleanliness level of fluids circulating in hydraulic systems, the progress of a flushing operation, the cleanliness level of support equipment and test rigs and the cleanliness level of packaged stock.

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Main informations

Collections

National standards and national normative documents

Publication date

November 2008

Number of pages

35 p.

Reference

NF ISO 11500

ICS Codes

75.120   Hydraulic fluids

Classification index

E48-658

Print number

1 - 14/11/2008

International kinship

ISO 11500:2008
Sumary
Hydraulic fluid power - Determination of the particulate contamination level of a liquid sample by automatic particle counting using the light-extinction principle

ISO 11500:2008 specifies an automatic particle-counting procedure for determining the number and sizes of particles present in hydraulic-fluid bottle samples of clear, homogeneous, single-phase liquids using an automatic particle counter (APC) that works on the light-extinction principle.

ISO 11500:2008 is applicable to the monitoring of the cleanliness level of fluids circulating in hydraulic systems, the progress of a flushing operation, the cleanliness level of support equipment and test rigs and the cleanliness level of packaged stock.

Replaced standards (1)
NF E48-658
September 1990
Standard Cancelled
Hydraulic fluid power. Fluids. Determination of particulate contamination by automatic counting using the light interruption principle.

La présente norme spécifie une méthode de détermination de la pollution particulaire par comptage automatique à absorption de lumière (distribution granulométrique et nombre de particules se trouvant dans un échantillon).

Standard replaced by (1)
NF ISO 11500
February 2023
Standard Current
Hydraulic fluid power - Determination of the particulate contamination level of a liquid sample by automatic particle counting using the light-extinction principle

This document specifies an automatic particle counting procedure for determining the number and sizes of particles present in hydraulic-fluid bottle samples of clear, homogeneous, single-phase liquids using an automatic particle counter (APC) that works on the light-extinction principle. This document is applicable to the monitoring of: a)       the cleanliness level of fluids circulating in hydraulic systems; b)       the progress of a flushing operation; c)        the cleanliness level of support equipment and test rigs; d)       the cleanliness level of packaged stock fluid. NOTE            Measurements can be made with particles suspended in the original liquid or in a sample of the liquid diluted with a compatible liquid when APC coincidence error limits are exceeded.

Table of contents
  • 1 Domaine d'application
  • 2 Références normatives
  • 3 Termes et définitions
  • 4 Matériaux et équipement
  • 5 Diluant
  • 6 Exigences préalables à l'essai et modes opératoires
  • 7 Mode opératoire de détermination du niveau de pollution particulaire par comptage automatique
  • 8 Rapport d'essai
  • 9 Phrase d'identification (référence à la présente Norme internationale)
  • Annexe A Mode opératoire permettant de procéder au contrôle statistiqued'un compteur automatique de particules
  • Annexe B Diluants acceptables
  • Annexe C Méthode de dépollution préalable du diluant et d'incorporation d'additifs dans le diluant pour éliminer l'influence de l'électricité statiquesur les comptages de particules
  • Annexe D Formulaire de présentation du niveau de pollution particulaired'un échantillon liquide tel que déterminé par comptage automatique
  • Annexe E Données d'essais interlaboratoires réalisés pour vérifierle mode opératoire spécifié dans l'ISO
    11500
  • Bibliographie
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