DIN 50929-1:2016-05 (Draft)

1 Scope and field of application
2 Concepts
      2.1 Electrochemical effects
      2.2 Free corrosion
      2.3 Mixed metal installation
      2.4 Probability of corrosion
3 Materials
      3.1 Ferrous materials
             3.1.1 Unalloyed and low-alloy ferrous
                      materials
             3.1.2 High-alloy stainless steels
             3.1.3 Hot-dip galvanized ferrous materials
      3.2 Copper and copper alloys
4 Corrosive agents
      4.1 Service components in side buildings
      4.2 Pipes, vessels and structural components
             outside buildings
5 Types of corrosion and corrosive action
      5.1 Free corrosion
      5.2 Corrosion by concentration cells (resulting
             from differential aeration)
      5.3 Galvanic corrosion, cell formation in the
             presence of impressed current cathodes
      5.4 Effects of difference
             5.4.1 Corrosive agent warmer than
                      structural component
             5.4.2 Corrosive agent colder than
                      structural component
      5.5 Effects of mechanical stresses
             5.5.1 Unalloyed ferrous materials
             5.5.2 High-alloy stainless steels
             5.5.3 Copper and copper alloys
6 Description of corrosion system
      6.1 Information on the material
      6.2 Information on the corrosive agent
      6.3 Information on temperature and stresses
      6.4 Information on any electrochemical effects
7 Estimating the probability of corrosion
8 Corrosion protective measures
Standards and other documents referred to

The specifications given are intended to serve as a basis for estimating the probability of corrosion of metallic materials as defined in clause 3 that are exposed to the action of a corrosive agent containing an aqueous electrolyte solution constantly or only intermittently acting on the external surfaces of a structural component. These specifications apply equally to service components in side buildings, vessels, pipes and structural components outside buildings, which are subject to the corrosive action of soil, ground water or surface water.