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Hardness reference blocks for quality assurance
„Made in Germany“

ESI Prüftechnik GmbH has been successfully involved in quality assurance in the field of hardness testing for almost 30 years. For the past five years, this experience has also been incorporated into the production of
hardness reference blocks at the Wendlingen site. The hardness reference blocks, manufactured in consistently high quality using German steel and aluminum materials, impress with their large test area and the associated effective and versatile applicability. Calibration is carried out in cooperation with two accredited calibration laboratories in accordance with DIN EN ISO and/or ASTM. Thanks to our regional production, we can guarantee you short-term availability of the hardness reference blocks you require “Made in Germany”.