ISO 4547:1993
Metallic materials; hardness test; calibration of standardized blocks to be used for Knoop hardness testing machines

Standard No.

ISO 4547:1993

Release Date

1993

Published By

International Organization for Standardization (ISO)

Status

Withdraw

Latest

ISO 4547:1993

Scope

This Intemational Standard specifies a method for the calibration of standardized metal blocks to be used in accordance with ISO 4546 for the indirect verification of Knoop hardness testing machines used for deter- mining Knoop hardness. The method is applicable only for indentations with long diagonals > 20 un1﹜

ISO 4547:1993 history

• 1993 ISO 4547:1993 Metallic materials; hardness test; calibration of standardized blocks to be used for Knoop hardness testing machines