This European Standard specifies the test method, requirements and classification when determining the effect on a window impacted with a soft and heavy body. Any secondary moving sashes, casements or fixed lights which may be mounted internally to the main casements or sashes, shall also be similarly tested. The test applies to all infill of whatever materials including glass. It is not intended to evaluate the strength of the glass when used as an infill. It is intended to assess the interactions between all components of a window with particular regard to safety in use. The test has been devised to suit all window types, configurations and materials.