Method for the macrographic examination of steel by sulphur print (Baumann method) Ingestion-build-98192 The transfer of potable water

The transfer of potable water is subject to special regulations

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Method for the macrographic examination of steel by sulphur print (Baumann method) Ingestion-build-98192 The transfer of potable water1 Scope and field of application This International Standard specifies a method (Baumann) for the macrographic examination of steel by means of contact printing using silver salts and sulphuric acid. The method is applicable to non alloy and alloy steels1) of which the sulphur content is less than 0,1 %. 2)