Standards Development

Scope

This European Standard describes the terminology, the design and the preparation of the substrate of industrial apparatus for the protection against corrosion caused by aggressive media. These industrial apparatus include, for example, reaction tanks, storage tanks, floors in industrial plants, in general for production and handling of chemicals.

The protection is applicable to metallic and concrete structures. Beside the protection of the apparatus, the protection of the media itself against pollution is also considered in this series of European Standards EN 14879.

A protection against corrosion caused by atmospheric exposure (as for example according to EN ISO 12944-4) is not included in the scope of this series of European Standards EN 14879. Corrosion protection systems according to this series of European Standards EN 14879 are:

1) Thick coatings normally of 1 mm or more thick.

2) Linings made of pre-fabricated sheets respectively plate materials.

3) Combined linings with tile and brick layers.

Purpose

The German mirror group of CEN/TC 360 see the need of a revision of EN 14879-1:2005, because the standard is no longer state of the art. A revision of the following points is considered necessary.

The scope should be defined more clearly, pipelines and flue gas cleaning systems should be added to the scope. The normative references should be updated. Terms and definitions should be updated and be defined more clearly. The welding joints should also be explicitly included in the surfaces (surfaces including welding seams) and treated in the further course of the process on an equal footing with the "normal" surface. This would highlight an often neglected area. In the case of concrete surfaces, the plaster is to be removed as an important point as the permissible surface and the new strength class is to be specified for the concrete. The requirements for concrete as a surface should be more clearly defined. The risky flame blasting should be removed as a preparation of surface. There is a risk of structural damage to the concrete if it is not handled properly. For this reason such a thing should not be supported by standards.”