INTERNATIONAL STANDARD ISO 4545-4
Metallic materials — Knoop hardness test —
Part 4:
Table of hardness values
ISO 4545 consists of the following parts, under the general title Metallic materials —— Knoop hardness test:
ISO 4545-1:2017, Metallic materials — Knoop hardness test — Part 1: Test method
ISO 4545-2, Metallic materials — Knoop hardness test — Part 2: Verification and calibration of testing machines
ISO 4545-3:2017, Metallic materials — Knoop hardness test — Part 3: Calibration of reference blocks
ISO 4545-4, Metallic materials — Knoop hardness test — Part 4: Table of hardness values
替代情况：替代 ISO 4545-4：2005
Contents
Foreword
Scope
Normative references
Terms and definitions
Table of Knoop hardness values
1 Scope
This document gives a table for the calculation of Knoop hardness values for use in tests carried out in accordance with ISO 4545-1.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition ofthe referenced document (including any amendments) applies.
ISO 4545 -1, Metallic materials — Knoop hardness test — Part 1: Test method
3 Terms and definitions
No terms and definitions are listed in this document.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at http://www.iso.org/obp
— IEC Electropedia: available at http://www.electropedia.org/
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