NF ISO 2942

NF ISO 2942

December 2004
Standard Cancelled

Hydraulic fluid power - Filter elements - Verification of fabrication integrity and determination of the first bubble point

ISO 2942:2004 specifies a bubble-point test method applicable to filter elements used in hydraulic fluid power systems. It can be used either to verify the fabrication integrity of a filter element (by checking the absence of bubbles) or to permit the localization of the largest pore of the filter element by determining the first bubble point.

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Main informations

Collections

National standards and national normative documents

Publication date

December 2004

Number of pages

13 p.

Reference

NF ISO 2942

ICS Codes

23.100.60   Filters, seals and contamination of fluids

Classification index

E48-671

Print number

1 - 25/11/2004

International kinship

ISO 2942:2004
Sumary
Hydraulic fluid power - Filter elements - Verification of fabrication integrity and determination of the first bubble point

ISO 2942:2004 specifies a bubble-point test method applicable to filter elements used in hydraulic fluid power systems. It can be used either to verify the fabrication integrity of a filter element (by checking the absence of bubbles) or to permit the localization of the largest pore of the filter element by determining the first bubble point.

Replaced standards (1)
NF E48-671
December 1989
Standard Cancelled
Fluid system. Filter elements. Verification of fabrication integrity and determination of first bubble point.

La présente norme spécifie une méthode permettant soit la vérification de la conformité de fabrication d'un élément filtrant par absence de bulle, soit la caractérisation d'un élément filtrant par détermination du point de première bulle.

Standard replaced by (1)
NF ISO 2942
May 2019
Standard Current
Hydraulic fluid power - Filter elements - Verification of fabrication integrity and determination of the first bubble point

This document specifies a bubble-point test method applicable to filter elements used in hydraulic fluid power systems. It can be used both to verify the fabrication integrity of a filter element (by checking the absence of bubbles) and to permit the localization of the largest pore of the filter element by determining the first bubble point. NOTE Verification of fabrication integrity is used to define the acceptability of the filter elements for further use or testing. The first bubble point is established through continuation of the fabrication integrity test. It is under no circumstances a functional characteristic of a filter element; in particular, it cannot be used to estimate filtration rating, efficiency or retention capacity and is intended to be used for information only. This document specifies a method to normalise fabrication integrity and bubble point data to a standard value of surface tension when test fluids other than 2-propanol are used.

Table of contents
  • Avant-propos
    iv
  • Introduction
    v
  • 1 Domaine d'application
    1
  • 2 Références normatives
    1
  • 3 Termes et définitions
    1
  • 4 Appareillage et produits
    2
  • 5 Méthodes d'essai
    3
  • 5.1 Mode opératoire général
    3
  • 5.2 Vérification de la conformité de fabrication (absence de bulles d'air)
    4
  • 5.3 Détermination du point de première bulle
    4
  • 6 Présentation des données
    5
  • 7 Phrase d'identification (Référence à la présente Norme internationale)
    5
  • Annexe A (normative) Rapport d'essai de vérification de la conformité de fabrication de l'élément filtrant et de détermination du point de première bulle
    6
  • Bibliographie
    7
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