The thickness of the protective coatings is measured at the facility. After evaluating the obtained measurement results and the composition of the coatings, conclusions are presented regarding the achieved corrosivity class.

The corrosivity class is determined in accordance with the standard LST EN ISO 12944-5 Paints and varnishes. Corrosion protection of steel structures by protective paint systems. Part 5. Protective paint systems (ISO 12944-5:2019).