EUROLAB, with its state-of-the-art accredited laboratories and expert team, provides precise and fast testing services within the scope of EN 993-10 testing. This standard specifies three methods for determining the permanent change in size of densely shaped refractory products during heating.
Rectangular prism or cylindrical test pieces are cut from each piece, then dried and their linear dimensions (Methods 1 and 2) or volume (Method 3) measured. The test pieces are heated at a predetermined rate in an oven with an oxidizing atmosphere to a certain temperature, which is maintained for a certain period of time. After cooling to ambient temperature, measurements are repeated on the test pieces and the permanent change in size or volume is calculated.
The test method involves subjecting a test sample of refractory product to a specific temperature for a specified period of time and then measuring the change in dimensions of the sample after cooling it to room temperature. The difference in dimensions is recorded as a permanent change in dimensions.
The standard provides detailed instructions on the preparation of test specimens, test equipment, and test procedure. The temperature range covered by the standard is determined by the intended use of the refractory product.
This standard is used by manufacturers of densely shaped refractory products to ensure that their products meet the required dimensional stability characteristics at elevated temperatures. It is also used by testing laboratories to provide independent verification of the product's dimensional stability properties.
Permanent size change testing is important for refractory products used in high temperature applications such as furnaces and kilns, as it shows the extent to which the shape of the product will change over time when exposed to high temperatures.
EUROLAB assists manufacturers with EN 993-10 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.
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