ISO 4968:2022
Steel — Macrographic examination by sulphur print (Baumann method)

Standard No.

ISO 4968:2022

Release Date

2022

Published By

International Organization for Standardization (ISO)

Latest

ISO 4968:2022

Scope

This document specifies a method (Baumann) for the macrographic examination of steel by means of contact printing using silver salts and acid. The method is applicable to steels of which the sulphur content is less than 0,40 %. This method can also be applied to cast irons.

ISO 4968:2022 history

• 2022 ISO 4968:2022 Steel — Macrographic examination by sulphur print (Baumann method)
• 1979 ISO 4968:1979 Steel; Macrographic examination by sulfur print (Baumann method)