ASTM A123/A123M-15 pdf free.Standard Specification for Zinc (Hot-Dip Galvanized) Coatings on Iron and Steel Products. ASTM A123/A123M 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. 4. Ordering Information 4.1 Orders for coatings provided under this specification shall include the following:...