EN 479 Plastics - Poly(vinyl chloride) (PVC) Based Profiles - Determination of Heat Recycling

EUROLAB, with its state-of-the-art accredited laboratories and expert team, offers precise and rapid testing services within the scope of EN 479 testing. This European Standard specifies a method for determining the heat recovery of non-plasticised poly(vinyl chloride) (PVC-U) profiles at 100°C in air. It can also be applied to PVC-based profiles at specified temperatures/other test conditions.

A test sample with a certain profile length is placed in an oven at 1°C for 100 hour. The marked length of this test sample is measured under the same conditions before and after heating in the oven. Heat recovery is calculated as the percentage change of the final length relative to the initial length per cue pair.

The standard shall provide a detailed procedure for determining heat reversal. This involves exposing PVC profiles to a specific temperature for a specific period of time and then assessing the extent to which the material rebounds or undergoes dimensional changes upon cooling.

The standard will specify acceptable heat recovery levels for PVC profiles and ensure that the material maintains its intended properties and dimensions under specified thermal conditions.

Guidelines for evaluating and interpreting test results. This includes criteria for determining whether the observed heat return is within acceptable limits.

EUROLAB assists manufacturers with EN 479 test compliance. Our test experts, with their professional working mission and principles, provide you, our manufacturers and suppliers, the best service and controlled testing process in our laboratories. Thanks to these services, businesses receive more effective, high-performance and quality testing services and provide safe, fast and uninterrupted service to their customers.