NF EN ISO 4589-2

NF EN ISO 4589-2

July 2017
Standard Current

Plastics - Determination of burning behaviour by oxygen index - Part 2 : ambient-temperature test

ISO 4589-2:2017 specifies methods for determining the minimum volume fraction of oxygen, in admixture with nitrogen, that will support combustion of small vertical test specimens under specified test conditions. The results are defined as oxygen index (OI) values. Methods are provided for testing materials that are self-supporting in the form of vertical bars or sheets up to 10,5 mm thick. These methods are suitable for solid, laminated or cellular materials characterized by an apparent density 100 kg/m3 or greater. The methods might also be applicable to some cellular materials having an apparent density of less than 100 kg/m3. A method is provided for testing flexible sheets or film materials while supported vertically. For comparative purposes, a procedure is provided for determining whether or not the OI of a material lies above some specified minimum value.

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Main informations

Collections

National standards and national normative documents

Publication date

July 2017

Number of pages

35 p.

Reference

NF EN ISO 4589-2

ICS Codes

13.220.40   Ignitability and burning behaviour of materials and products
83.080.01   Plastics in general

Classification index

T51-071-2

Print number

1

International kinship

ISO 4589-2:2017

European kinship

EN ISO 4589-2:2017
Sumary
Plastics - Determination of burning behaviour by oxygen index - Part 2 : ambient-temperature test

ISO 4589-2:2017 specifies methods for determining the minimum volume fraction of oxygen, in admixture with nitrogen, that will support combustion of small vertical test specimens under specified test conditions. The results are defined as oxygen index (OI) values.

Methods are provided for testing materials that are self-supporting in the form of vertical bars or sheets up to 10,5 mm thick. These methods are suitable for solid, laminated or cellular materials characterized by an apparent density 100 kg/m3 or greater. The methods might also be applicable to some cellular materials having an apparent density of less than 100 kg/m3. A method is provided for testing flexible sheets or film materials while supported vertically.

For comparative purposes, a procedure is provided for determining whether or not the OI of a material lies above some specified minimum value.

Replaced standards (2)
NF EN ISO 4589-2
August 1999
Standard Cancelled
Plastics. Determination of burning behaviour by oxygen index. Part 2 : ambient-temperature test.

Le présent document prescrit des méthodes pour la détermination de la concentration minimale d'oxygène, dans un mélange oxygène/azote, qui permet d'entretenir la combustion des petites éprouvettes verticales dans des conditions d'essai spécifiées.

NF EN ISO 4589-2/A1
August 2006
Standard Cancelled
Plastics - Determination of burning behaviour by oxygen index - Part 2 : ambient-temperature test

Le présent document consiste en différentes mises à jour et corrections ; notamment une correction des dimensions de la cheminée au paragraphe 5.1 et la création d'un paragraphe sur la fidélité des résultats.

Table of contents
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  • 1 Domaine d'application
  • 2 Références normatives
  • 3 Termes et définitions
  • 4 Principe
  • 5 Appareillage
  • 6 Étalonnage de l'appareillage
  • 7 Préparation des éprouvettes
  • 8 Mode opératoire de détermination de l'indice d'oxygène
  • 9 Calculs et expression des résultats
  • 10 Comparaison avec une valeur minimale spécifiée de l'indice d'oxygène (procédé court)
  • 11 Rapport d'essai
  • Annexe A Étalonnage de l'appareillage
  • Annexe B Calcul de la fraction volumique d'oxygène
  • Annexe C Exemple de feuille de résultats
  • Annexe D Résultats obtenus sur les éprouvettes du type VI lors des essais interlaboratoires
  • Annexe E Fidélité des résultats obtenus lors d'un essai interlaboratoires mené en 1978-1980
  • Bibliographie
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