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 4545-1:2005, 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 4545-3:2005, 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
标准状态：已作废
替代情况：被 ISO 4545-4：2017替代
Foreword
1 Scope
This part of ISO 4545 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.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 4545-1, 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
相关标准
国家标准GB/T 18449.4-2009 《金属材料 努氏硬度试验 第4部分：硬度值表》
本标准等同采用ISO 4545-4:2005《金属材料 努氏硬度试验 第4部分:努氏硬度值表》(英文版)。
本标准的整体结构、层次划分、编写方法和技术内容与ISO4545-4:2005 完全一致。本部分对ISO4545-4:2005在以下方面进行了编辑性修改:
——用中文惯用的小数点符号.代替英文采用的小数点符号,;
——重新编写了前言,代替国际标准的前言。
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