90.92 Standard to be revised Mar 16, 2023
ISO
ISO/TC 17/SC 7 Methods of testing (other than mechanical tests and chemical analysis)
International Standard
77.040.99 Other methods of testing of metals
ISO 4967:2013 specifies a micrographic method of determining the non-metallic inclusions in rolled or forged steel products having a reduction ratio of at least 3 using standard diagrams. This method is widely used to assess the suitability of a steel for a given use. However, since it is difficult to achieve reproducible results owing to the influence of the test operator, even with a large number of specimens, precautions should be taken when using the method.
ISO 4967:2013 also provides for the determination of non-metallic inclusions by image analysis technologies.
WITHDRAWN
ISO 4967:1998
PUBLISHED
ISO 4967:2013
90.92
Standard to be revised
Mar 16, 2023