Flexible and rigid cellular polymeric materials. Accelerated ageing tests
Flexible and rigid cellular polymeric materials. Accelerated ageing tests
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What is ISO 2440 - Accelerated ageing test about?
ISO 2440 specifies, for flexible and rigid cellular polymeric materials, laboratory procedures that are intended to imitate the effects of naturally occurring reactions such as oxidation or hydrolysis by humidity. The physical properties of interest are measured before and after the application of the specified treatments. Test conditions are only given for open cellular latex, both open- and closed-cell polyurethane foams, and closed-cell polyolefin foams. Conditions for other materials will be added as required. The effect of the ageing procedures on any of the physical properties of the material can be examined, but those normally tested are either the elongation and tensile properties, or the compression or indentation hardness properties. ISO 2440 ’s tests do not necessarily correlate either with service behaviour or with ageing by exposure to light.
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