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Double-ring Flexure Test on Glass Sheets

Double-ring Flexure Test on Glass Sheets

Either a static puncture test to EN 1288-5 or a 4-point flexure test to EN 1288-3 can be used to test the safety of the glass sheet employed. A Zwick Allround-Line testing machine is used for both tests, which require the incorporation of safety devices to prevent damage or injury due to flying glass splinters. In the puncture test a  25x25 mm glass sheet is positioned in a double ring flexure test kit, consisting of support and load rings, plus locating pins for fixing the specimen). A die is then used to load the specimen up to break. This test is carried out as per standard using a 2-column testing machine with a maximum force of 50 kN. 

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