This specification covers a group of inorganic zinc primers that can protect carbon steel during the fabrication process@ permit welding to specification requirements@ and be overcoated. The major pigment component in this coating is zinc dust and the binder is inorganic. This specification defines the minimum compositional and laboratory performance requirements for characterizing a group of zinc primers. It is to be used in conjunction with SSPC-PS Guide 22.00@ SSPC-PS Guide 12.00@ and other SSPC specifications covering surface preparation@ application@ thickness@ inspection@ and safety.