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Normas DIN – AENOR
DIN EN ISO 4589-2:2017-11

DIN EN ISO 4589-2:2017-11

Plastics - Determination of burning behaviour by oxygen index - Part 2: Ambient-temperature test (ISO 4589-2:2017); German version EN ISO 4589-2:2017

Plastiques - Détermination du comportement au feu au moyen de l'indice d'oxygène - Partie 2: Essai à la température ambiante (ISO 4589-2:2017); Version allemande EN ISO 4589-2:2017

Kunststoffe - Bestimmung des Brennverhaltens durch den Sauerstoff-Index - Teil 2: Prüfung bei Umgebungstemperatur (ISO 4589-2:2017); Deutsche Fassung EN ISO 4589-2:2017

Fecha:
2017-11 /Active
Equivalencias internacionales:

EN ISO 4589-2 (2017-05)

ISO 4589-2 (2017-04)

Resumen:
The document specifies the method for determining the minimum concentration of oxygen, in a mixture with nitrogen, that will support combustion of small vertical test specimens under specified test conditions. The results are defined as oxygen index 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/m<(hoch)3> or greater. The methods might also be applicable to some cellular materials having an apparent density of less than 100 kg/m<(hoch)3>. 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.
Keywords:
Ambient temperature, Burning behaviours, Burning tests, Combustion, Concentration, Determination, Determination procedures, Fire tests, Flammability, High-temperature techniques, High-temperature testing, Materials, Nitrogen, Oxygen, Oxygen concentration, Oxygen index, Physical testing, Plastic films, Plastics, Surface spread of flame, Temperature, Test equipment, Test performance, Testing
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