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
標(biāo)準(zhǔn)狀態(tài)：已作廢
替代情況：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
相關(guān)標(biāo)準(zhǔn)
國(guó)家標(biāo)準(zhǔn)GB/T 18449.4-2009 《金屬材料 努氏硬度試驗(yàn) 第4部分：硬度值表》
本標(biāo)準(zhǔn)等同采用ISO 4545-4:2005《金屬材料 努氏硬度試驗(yàn) 第4部分:努氏硬度值表》(英文版)。
本標(biāo)準(zhǔn)的整體結(jié)構(gòu)、層次劃分、編寫方法和技術(shù)內(nèi)容與ISO4545-4:2005 完全一致。本部分對(duì)ISO4545-4:2005在以下方面進(jìn)行了編輯性修改:
——用中文慣用的小數(shù)點(diǎn)符號(hào).代替英文采用的小數(shù)點(diǎn)符號(hào),;
——重新編寫了前言,代替國(guó)際標(biāo)準(zhǔn)的前言。
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