Denver, Colorado – The American Water Works Association (AWWA) is inviting comments on the proposed new standards for polyurethane coatings for steel water pipes and fittings.
The standard, ANSI/AWWA C222, sets minimum requirements for both shop- and field-applied polyurethane coatings and linings used within the water supply industry. Polyurethanes are used to coat steel water pipe, special sections, welded joints, connections, or fittings for steel water pipelines installed underground or underwater operating under normal conditions.
Major revisions to the previous standard include the addition of information on inorganic contaminants, and a section on the UV exposure of coated pipe. Adhesion has been added as a prequalification test. Sections including those on verification and cathodic disbondment have been changed to be consistent with other AWWA steel pipe coating standards.
Comments should be submitted to AWWA in writing no later than 23 October 2016.