Metallic materials. Vickers hardness test - Calibration of reference blocks Ingestion-build-95349 ISO 19642‑2 defines test methods

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Metallic materials. Vickers hardness test - Calibration of reference blocks Ingestion-build-95349 ISO 19642‑2 defines test methods1 Scope This document specifies a method for the calibration of reference blocks to be used for the indirect verification of Vickers hardness testing machines, as specified in ISO 65072. The method is applicable only for indentations with diagonals 0,020 mm.