NF ISO 2782

NF ISO 2782

October 2007
Standard Cancelled

Rubber, vulcanized or thermoplastic - Determination of permeability to gases

ISO 2782:2006 describes two procedures for measuring the permeability of rubber to gases under steady-state conditions. One uses a horizontal measuring device for measurements at constant pressure and the other uses a vertical measuring device for measurements at constant volume or constant pressure. The results obtained by these procedures may be extrapolated to thicknesses of material different from that of the test piece providing the rubber is homogeneous and isotropic. The procedures apply to solid rubber of hardness not less than 35 IRHD and to gases such as air, nitrogen, oxygen, hydrogen, liquefied petroleum gas (in gaseous form) and coal gas. Errors may be introduced if the gas used appreciably swells the rubber under test.

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Main informations

Collections

National standards and national normative documents

Publication date

October 2007

Number of pages

20 p.

Reference

NF ISO 2782

ICS Codes

83.060   Rubber

Classification index

T46-034

Print number

1 - 11/09/2007

International kinship

ISO 2782:2006
Sumary
Rubber, vulcanized or thermoplastic - Determination of permeability to gases

ISO 2782:2006 describes two procedures for measuring the permeability of rubber to gases under steady-state conditions. One uses a horizontal measuring device for measurements at constant pressure and the other uses a vertical measuring device for measurements at constant volume or constant pressure. The results obtained by these procedures may be extrapolated to thicknesses of material different from that of the test piece providing the rubber is homogeneous and isotropic.

The procedures apply to solid rubber of hardness not less than 35 IRHD and to gases such as air, nitrogen, oxygen, hydrogen, liquefied petroleum gas (in gaseous form) and coal gas. Errors may be introduced if the gas used appreciably swells the rubber under test.

Replaced standards (1)
NF ISO 2782
December 2004
Standard Cancelled
Rubber, vulcanized or thermoplastic - Determination of permeability to gases

Standard replaced by (2)
NF ISO 2782-1
September 2012
Standard Cancelled
Rubber, vulcanized or thermoplastic - Determination of permeability to gases - Part 1 : differential-pressure methods

Le présent document spécifie deux méthodes pour déterminer la perméabilité aux gaz des caoutchoucs vulcanisés ou thermoplastiques sous une pression différentielle partielle.

NF ISO 2782-2
September 2012
Standard Cancelled
Rubber, vulcanized or thermoplastic - Determination of permeability to gases - Part 2 : equal-pressure method

Le présent document spécifie une méthode pour déterminer la vitesse de pénétration du gaz et la perméabilité aux gaz des caoutchoucs vulcanisés et/ou thermoplastiques sous une équi-pression en utilisant la chromatographie en phase gazeuse.

Table of contents
View the extract
  • Avant-propos
    iv
  • Introduction
    v
  • 1 Domaine d'application
    1
  • 2 Références normatives
    1
  • 3 Définition
    1
  • 4 Principe
    1
  • 5 Appareillage
    2
  • 6 Éprouvettes
    5
  • 6.1 Forme et dimensions
    5
  • 6.2 Nombre d'éprouvettes
    5
  • 7 Délai entre vulcanisation et essai
    6
  • 8 Température d'essai
    6
  • 9 Modes opératoires
    6
  • 9.1 Généralités
    6
  • 9.2 Détermination du débit
    8
  • 9.3 Détermination de (V2P2 -V1P1 )
    9
  • 10 Expression des résultats
    12
  • 11 Rapport d'essai
    13
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