ISO 11093-9 Paper and Cardboard - Testing of Cores - Determination of Flat Crush Resistance

EUROLAB, with its state-of-the-art accredited laboratories and expert team, provides precise and fast testing services within the scope of ISO 11093-9 testing. This part of ISO 11093 covers a method for determining the maximum flat crush strength of wrapped paper and cardboard cores.

The test piece is placed between two pressure plates arranged in parallel so that its axis is parallel to the plane of the pressure plates and is compressed at a constant plate velocity until the initial maximum or stabilization of the load is exceeded.

The compression testing machine should be equipped with flat top and bottom plates that are kept rigidly parallel during testing and allow movement only in the vertical direction. The speed of the moving roller is the actual moving speed of the roller when under load. The force measurement shall have an accuracy of ± 1% of the smallest crushing load measured.

Cutting device for making test pieces capable of producing a cut at 90°± 1° to the axis of the core. The instrument should cut cleanly without lint and not cause deformation of the test piece. A circular saw should be used to comply with daily practice and make the sampling procedure and preparation of test pieces more precise and valid.

EUROLAB assists manufacturers with ISO 11093-9 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.