Historical
ISO 4967:1998
Steel - Determination of content of nonmetallic inclusions - Micrographic method using standard diagrams
This International Standard specifies a micrographic method of determining the nonmetallic 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.
This International Standard also provides for the determination of nonmetallic inclusions by image analysis technologies (see annex D).
Content Provider
International Organization for Standardization [iso]
