EN ISO 945-1:2018

European foreword
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 General
5 Sampling and sample preparation
6 Procedure for graphite classification
7 Reference images
8 Designation of graphite by form, distribution and size
9 Report
Annex A (informative) - Typical graphite forms in cast-iron
        materials - Examples of photomicrographs
Annex B (informative) - Distribution of flake
        (lamellar) graphite (form I) - Examples
        of photomicrographs
Annex C (informative) - Common terminology and
        main occurrences concerning graphite in cast irons
Bibliography

ISO 945-1:2017 specifies a method of classifying the microstructure of graphite in cast irons by comparative visual analysis.The purpose of this document is to provide information about the method of graphite classification. It is not intended to give information on the suitability of cast-iron types and grades for any particular application.The particular material grades are specified mainly by mechanical properties and, in the case of austenitic and abrasion resistant cast irons, by their chemical composition. The interpretation of graphite form and size does not allow a statistically valid statement on the fulfilment of the requirements specified in the relevant material standard.