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Back to AWWA C222-08 Polyurethane Coatings for the Interior and Exterior of Steel Water Pipe and Fittings

AWWA C222-08 Polyurethane Coatings for the Interior and Exterior of Steel Water Pipe and Fittings

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Publisher: AWWA
Publication date: 2008
AWWA catalog no: STC_0069217
Media Type: PDF, Print
Number of pages: 32
DOI: http://dx.doi.org/10.12999/AWWA.C222.08
This standard sets minimum requirements for shop- and field-applied polyurethane interior linings and exterior coatings used in the water supply industry. These coatings are used for steel water pipe, special sections, welded joints, connections, or fittings for steel water pipelines installed underground or underwater operating under normal conditions. Major changes made to the standard in this edition include the following: maximum temperature has been modified in Sec. 1.1.3; the properties of laboratory-applied coating requirements in Table 1 have been revised; the section on coating adhesion has been removed (Sec. 4.2.1, C222-99); revised impact resistance testing to be determined using ASTM G14 (Sec. 4.2.3); added dielectric strength testing per ASTM D149 (Sec. 4.2.6); changed dry film thickness measurement in Sec. 4.3.4; pipe preparation has been modified (Sec. 4.4.2); the abrasive blast cleaning section has been revised, changes have been made to the visual comparative standards requirements, and a new section on abrasive working mix has been added; the requirements for overcoating in Sec. 4.5.5 have been revised; the term recoat was changed to overcoat and a new section on curing of coatings has been added (Sec. 4.5.6); requirements for protection during welding of field joints have been changed (Sec. 4.7.2), and Sec. 4.7.5 has been updated to require approval by the purchaser for welded field joint materials; a maximum particle size for backfill was added to Sec. 4.10.3.2; Table 2 has been updated and renamed to Properties of Production Coating; the paragraph on coating application inspection has been removed from Sec. 5.2; coating tests in Sec. 5.3 were modified; Sec. 5.5 on coated pipe inspection has been modified; and, the section on cure test was removed, and the requirements for adhesion testing have been changed.

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This standard sets minimum requirements for shop- and field-applied polyurethane interior linings and exterior coatings used in the water supply industry. These coatings are used for steel water pipe, special sections, welded joints, connections, or fittings for steel water pipelines installed...
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