NF EN ISO 4545-4
Metallic materials - Knoop hardness test - Part 4 : tables of hardness values
ISO 4545-4:2005 gives a table for the calculation of Knoop hardness values for use in tests made on flat surfaces carried out in accordance with ISO 4545-1.
ISO 4545-4:2005 gives a table for the calculation of Knoop hardness values for use in tests made on flat surfaces carried out in accordance with ISO 4545-1.
<p>ISO 4545-4:2017 gives a table for the calculation of Knoop hardness values for use in tests carried out in accordance with ISO 4545‑1.</p>
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