1 Scope
This document describes the typical method for acid pickling generally used in a shop facility for the preparation of steel substrates before
application of paints and related products. It is in general applicable to new steelwork.
This method is essentially intended to remove rust and mill scale. Typically, only
slight oil residues can be removed during this process. It can be used on steel surfaces
that are easily deformed by abrasive blasting.
BS ISO 8504-4:2022 history
2022BS ISO 8504-4:2022 Preparation of steel substrates before application of paints and related products. Surface preparation methods - Acid pickling