Hivatkozási szám

MSZ EN ISO 4545-1:2024

Dokumentumazonosító

183440

Cím

Fémek. Knoop-keménységmérés. 1. rész: Mérési eljárás (ISO 4545-1:2023)

Angol cím

Metallic materials. Knoop hardness test. Part 1: Test method (ISO 4545-1:2023)

Alkalmazási terület

This document specifies the Knoop hardness test method for metallic materials for test forces from 0,009 807 N to 19,613 N. This document specifies Knoop hardness tests for length of the long diagonal ?0,020 mm. Using this method to determine the Knoop hardness from smaller indentations is outside the scope of this document as results would suffer from large uncertainties due to the limitations of optical measurement and imperfections in tip geometry. The Knoop hardness test specified in this document is also applicable for metallic and other inorganic coatings including electrodeposited coatings, autocatalytic coatings, sprayed coatings and anodic coatings on aluminium. This document is applicable to measurements normal to the coated surface and to measurements on cross-sections, provided that the characteristics of the coating (smoothness, thickness, etc.) permit accurate readings of the diagonal of the indentation. This document is not applicable for coatings with thickness less than 0,007 mm when testing normal to the coating surface. This document is not applicable for coatings with thickness less than 0,020 mm when testing a cross-section of the coating. ISO 14577-1 can be used for the determination of hardness from smaller indentations. A periodic verification method is specified for routine checking of the testing machine in service by the user.

ICS

77.040.10 Fémek mechanikai vizsgálata

Műszaki Bizottság

A szabvány nyelve

angol

Az érvényesség kezdete

2024-04-01

Forrás

idt EN ISO 4545-1:2023; idt ISO 4545-1:2023

Előd

MSZ EN ISO 4516:2002, MSZ EN ISO 4545-1:2018

Utód

Módosítás

SZK-közlemények

Kapcsolódó európai jogszabály

A szabvány

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