Målning

Ämnesområden: Ytrengöring; Målning
Kommittébeteckning: SIS/TK 146 (Korrosion)
Källa: CEN
Svarsdatum: den 7 jul 2019
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This part of ISO 8502 describes a method of extracting, for analysis, water soluble contaminants from a surface by use of flexible cells in the form of adhesive patches or sleeves which can be attached to any surface, regardless of its shape (flat or curved) and its orientation (facing in any direction, including downwards).

The method described is suitable for use in the field to determine the presence of water soluble contaminants before painting or a similar treatment.

This part of ISO 8502 does not cover the subsequent analysis of the contaminants that have been dissolved off. Methods of analysis suitable for field use are described in other parts of ISO 8502.

NOTE The extraction method might give a false negative or not take all the water-soluble material off the surface because of: (1) Soluble materials hiding in the crevices or under folds of metal; (2) Soluble materials under corrosion layers, passivation layers produced by corrosion inhibitors, oil, grease, or other non-visible thin films.

Ämnesområden: Ytrengöring; Målning
Kommittébeteckning: SIS/TK 146 (Korrosion)
Källa: CEN
Svarsdatum: den 7 jul 2019
Se merSe mindre
 

This part of ISO 8502 describes 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 will form an electrolyte (ions) when in contact with water. These represent the greater part of the contaminants.

Ämnesområden: Målning
Kommittébeteckning: SIS/TK 146 (Korrosion)
Källa: CEN
Svarsdatum: den 7 jul 2019
Se merSe mindre
 

This document describes the types of paint and paint system commonly used for corrosion protection of steel structures.

It also gives guidelines for the selection of paint systems available for different environments (see ISO 12944-2) except for corrosivity category CX and category Im4 as defined in ISO 12944-2 and different surface preparation grades (see ISO 12944-4), and the durability grade to be expected (see ISO 12944-1).