Applications

To ensure your hardness testers remain compliant between calibrations, Gibitre’s certified test blocks are the simple and reliable solution. In accordance with ISO 48-4:2018 (clause 10.2), they enable weekly verification of instruments against standard rubber blocks, facilitating quick interim checks when hardness is a critical parameter for product compliance.

Each test block is supplied in a protective wooden box, which shields it from temperature fluctuations and sunlight. The Calibration Report, traceable to the certified instrument used for the measurement, accompanies each test block. The unique identification label ensures proper traceability of the calibration and helps prevent measurement errors.

With Gibitre Test Specimens, you can regularly verify the compliance status of your hardness testers between two consecutive calibrations, as required for instruments in regular use by ISO 48-4. A practical choice for those who need to check the hardness of rubber materials using consistently reliable measuring instruments.