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prEN ISO 8502-2 - Preparation of steel substrates before application of paints and related products - Tests for the assessment of surface cleanliness - Part 2: Extraction of water-soluble contaminants for analysis by swabbing method (ISO/DIS 8502‑2:2026)
Ämnesområden: Ytrengöring; Målning
Kommittébeteckning: SIS/TK 433 (Färg och lack)
Källa: CEN
Svarsdatum: den 14 okt 2026
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This document describes a method for extracting, for analysis, soluble contaminants from a surface by swabbing them from their surfaces. With suitable surface sampling techniques, the test is applicable to steel surfaces before and after cleaning, as well as to coated surfaces between application of coatings.

prEN ISO 8503-5 - Preparation of steel substrates before application of paints and related products - Surface roughness characteristics of blast-cleaned steel substrates - Part 5: Replica tape method for the determination of the surface profile (ISO/DIS 8503‑5:2026)
Ämnesområden: Ytrengöring
Kommittébeteckning: SIS/TK 433 (Färg och lack)
Källa: CEN
Svarsdatum: den 29 okt 2026
Detaljer om förslaget
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This document describes a field method for measuring the surface profile produced by any of the abrasive blast-cleaning procedures given in ISO 8504-2:2019. The method uses replica tape and a suitable gauge for measuring the roughness of a surface before the application of paint or another protective coating.

The method is applicable within the range of profile heights cited for a given grade (or thickness) of replica tape. The commercial grades currently available permit measurement of average peak-to-valley profiles of 12 µm to 150 µm. The method is valid for surfaces that have been cleaned with abrasives.