At AIMPLAS, we carry out different tests to evaluate the integrity of product containers and packaging materials after being heated in a microwave or washed in a dishwasher.
Resistance to microwave heating tests are performed in accordance with standard EN 15284. They are used to assess a material’s suitability for use in a microwave and to check its integrity and handling safety. In this test, we visually assess any defects in these materials after they are exposed to microwaves for two time periods, one short and one long, defined based on the power of the microwave. For this assessment, methylene blue is used to mark any defects, given that they are generally not visible.
After each exposure (short and long), the temperature of the material is immediately measured in all areas, especially the thicker ones. The temperature must be over 60°C.
Our laboratories also carry out dishwasher resistance tests in accordance with standard UNE 53928.
This testing involves washing the samples in successive cycles under the conditions stipulated in the standard and verifying their integrity after washing by examining them visually and comparing them with unwashed samples to identify any changes in the following properties:
For a plastic container or plastic tableware to be considered reusable, it must be able to withstand a minimum number of washing cycles. The maximum number of cycles the item is able to withstand will be marked on it.
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