This part of ISO 6506 specifies a method for the calibration of reference blocks to be used in the indirect verification of Brinell hardness testing machines as described in ISO 6506-2.
EN ISO 6506-3:2005 history
2014EN ISO 6506-3:2014 Metallic materials - Brinell hardness test - Part 3: Calibration of reference blocks
2005EN ISO 6506-3:2005 Metallic Materials - Brinell Hardness Test - Part 3: Calibration of Reference Blocks ISO 6506-3:2005
1999EN ISO 6506-3:1999 Metallic Materials - Brinell Hardness Test - Part 3: Calibration of Reference Blocks ISO 6506-3:1999