scope:

This document gives guidance for the assessment of the corrosion likelihood of metallic materials in water distribution and storage systems, as a result of corrosion on the water-side. Water distribution and storage systems considered in this document are used for waters intended for human consumption according to EC directive 98/83/EEC and for waters of similar chemical composition. This document does not cover systems that convey the following types of water. - sea water; - brackish water; - geothermal water; - sewage water; - swimming pool water; - open cooling tower water; - recirculating heating and cooling water; - demineralized water. Parts 2 to 5 of this document cover the factors influencing the corrosion likelihood for copper and copper alloys, hot-dip galvanized ferrous materials, stainless steels and cast iron, unalloyed and low alloyed steels in detail. This document does not cover lead.