This specification covers the requirements for zinc coating (galvanizing) by the hot-dip process on iron and steel products made from rolled, pressed and forged shapes, castings, plates, bars, and strips.
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AASHTO M 111M/M 111-11
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Standard Specification for Zinc (Hot-Dip Galvanized) Coatings on Iron and Steel Products (ASTM Designation: A 123/A 123M-09)