21/30432410 DC

This standard 21/30432410 DC BS ISO 8504-4. Preparation of steel substrates before application of paints and related products. Surface preparation methods is classified in these ICS categories:

• 25.220.10 Surface preparation

This document describes the typical immersion method for acid pickling generally used in shop facility’s 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. Only slight oil residues will be removed during this process. It could be used on steel surfaces that are easily deformed by abrasive blasting.