Go-to guide on zinc
ASTM B69-16 - Standard Specification for Rolled Zinc
RHEINZINK has received an ASTM standard approval for Rolled Zinc for two alloys. The designations are ASTM B69-16 - Architectural Rolled - Type 1 and Type 2. Type 1 is for bright rolled and preweathered blue-gray. Type 2 is for Graphite-Gray zinc.
*Currently, RHEINZINK is the only zinc manufacturer with a Type 2 designation.