Ductile iron pipes, fittings, accessories and their joints. External zinc-based coating - Metallic zinc with finishing layer Ingestion-build-180956 and G3 sets in versions

and G3 sets in versions of ISO/IEC 4873

National distribution

and test requirements for specific types

modelling frameworks

verification of performance

Ductile iron pipes, fittings, accessories and their joints. External zinc-based coating - Metallic zinc with finishing layer Ingestion-build-180956 and G3 sets in versions1 Scope This document specifies an external protective coating system which is factory applied to ductile iron pipeline components as specified in ISO 2531, ISO 7186 and ISO 16631. This coating system comprises an electro deposited metallic zinc based coating of pure metallic zinc with a purity of 99,99 %, zinc and aluminium alloy with or without other metals, or other zinc alloys followed by a finishing layer that can be bituminous paint or synthetic