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About This Item
Full Description
Methods are provided for testing materials that are self-supporting at the test temperature in the form of vertical bars or sheet up to 10,5 mm thick. However, they are not applicable to form V which requires a supporting frame as defined in ISO 4589-2:2017, Table 2. These methods are suitable for solid, laminated or cellular materials characterized by an apparent density 100 kg/m3 or higher. The methods are also applicable to some cellular materials having an apparent density of less than 100 kg/m3. A method is provided for testing flexible sheet or film materials while supported vertically.
This document also includes a method (see Annex A) for determining the temperature at which the OI of small vertical test specimens in air is 20,9 % under specified test conditions. The temperature at which this occurs is defined as the flammability temperature (FT) and the method is limited to the determination of temperatures less than 400 °C. The method is not applicable to materials having an OI of <20,9 %.
NOTE 1 It might not be possible to apply these methods satisfactorily to materials that exhibit high levels of shrinkage when heated, e.g. highly oriented thin film.
NOTE 2 For assessing the flame propagation properties of cellular materials of density <100 kg/m3, attention is drawn to the method described in ISO 3582.
Cross References:
ISO 4589-2:2017
ISO 13943:2008 Ed 2
ISO 4589-1:2017 ISO 3582:2000 Ed 2
All current amendments available at time of purchase are included with the purchase of this document.
Document History
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BS EN ISO 4589-3:2017
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Plastics. Determination of burning behaviour by oxygen index-Elevated-temperature test- Most Recent
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BS EN ISO 4589-3:1996
Plastics. Determination of burning behaviour by oxygen index-Elevated temperature test- Historical Version
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BS 2782-1:METHODS 143A+AND 143B:1989
Methods of testing plastics. Thermal properties-Determination of flammability temperature of materials- Historical Version