INTERNATIONAL STANDARD ISO 4545-1:2005(E)
Metallic materials — Knoop hardness test —
Part 1:
Test method
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 4545-2:2005, 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 4545-1:2017替代
Contents
Foreword
1. Scope
2. Normative references
3. Principle
4. Symbols and abbreviated terms
5. Apparatus
6. Test piece
7. Procedure
8. Uncertainty of the results
9. Test report
Annex A (informative) Procedure for periodic checking of the testing machine by the user
Annex B (informative) Uncertainty of the measured hardness values
Bibliography
1 Scope
This part of ISO 4545 specifies the Knoop hardness test method for metallic materials, for test forces from 0,098 07 N to 19,614 N. The method is recommended only for indentations with diagonals W 0,020 mm.
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 4545-2:2005, 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
相关标准
国家标准GB/T 18449.1-2009 《金属材料 努氏硬度试验 第1部分：试验方法》
本标准修改采用ISO4545-1:2005《金属材料 努氏硬度试验 第1部分:试验方法》(英文版)。
本标准根据ISO4545-1:2005重新起草,根据我国的实际情况,本部分在采用国际标准时进行了修改和补充。这些技术性差异用垂直单线标识在它们所涉及的条款的页边空白处。
本标准结构和技术内容与ISO4545-1:2005基本一致,根据我国情况在以下几方面进行了修改:
——删除了国际标准的引言;
——修改了国际标准的前言;
——将规范性引用文件中的国际标准转化为对应的国标;
——修改了附录B硬度测量值的不确定度。
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