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prEN ISO 8502-9

Preparation of steel substrates before application of paints and related products - Tests for the assessment of surface cleanliness - Part 9: Field method for the conductometric determination of water-soluble salts (ISO/DIS 8502‑9:2026) prEN ISO 8502-9

Publication date:   Sep 3, 2026

General information

40.20   DIS ballot initiated: 12 weeks   Sep 3, 2026

CEN

CEN/TC 139 Paints and varnishes

European Norm

25.220.10   Surface preparation

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Scope

This document specifies a field method for the assessment of the surface density of various water-soluble salts on steel surfaces, before and/or after surface preparation, by conductometric determination. The individual surface densities of the salt composition like chlorides, sulphates, sodium, etc, cannot be determined by this method.
This method assesses only contaminants that forms an electrolyte (ions) when in contact with water. These represent the greater part of the contaminants.

Life cycle

PREVIOUSLY

PUBLISHED
EN ISO 8502-9:2020

NOW

IN_DEVELOPMENT
prEN ISO 8502-9
40.20 DIS ballot initiated: 12 weeks
Sep 3, 2026




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