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ISO 4547:1993

Metallic materials — Hardness test — Calibration of standardized blocks to be used for Knoop hardness testing machines ISO 4547:1993

Publication date:   Mar 14, 1993

95.99 Withdrawal of Standard   Nov 17, 2005

General information

95.99 Withdrawal of Standard   Nov 17, 2005

ISO

ISO/TC 164/SC 3 Hardness testing

International Standard

77.040.10   Mechanical testing of metals

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Scope

The method specified is applicable only for determining Knoop hardness in accordance with ISO 4545 giving indentations with long diagonals longer than or equal to 20 micrometres. Describes manufacture of the block, standardizing machine, standardizing procedure, number of indentations, uniformity of hardness, marking and test certificate. Annex A describes adjustment of Abbe/Nelson or Kohler illumination systems.

Life cycle

NOW

WITHDRAWN
ISO 4547:1993
95.99 Withdrawal of Standard
Nov 17, 2005

REVISED BY

WITHDRAWN
ISO 4545-3:2005