The ISO 8179-2:2017 standard specifies technical requirements for external zinc-based coatings for ductile cast iron pipes and their fittings. The second part of the standard focuses on the application of zinc-rich coatings, replacing the 1995 version. The most significant change in the standard is an increase in the minimum zinc content from 130 g/m ² to 200 g/m ², reflecting advances in coating technology to enhance the service life and Reliability of pipes. The coating system includes zinc-rich coatings as well as subsequent finishing layers (asphalt paint or compatible synthetic resin). The standard is designed to provide effective corrosion protection and ensure the durability of ductile cast iron pipes in a variety of environments.
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| CCS | ICS |
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