Purpose: This specification covers the requirements for electrodeposition of a zinc-nickel alloy and the properties of the deposit. Application: This plating process has been used typically to provide corrosion resistance to steel parts which may operate up to 500 ??(260 ?? (Type 1)@ up to 250 ??(121 ?? (Type 2)@ or up to 350 ??(177 ?? (Type 3)@ but usage is not limited to such applications (See 8.9 and 8.10). Classification: Plating covered by this specification is classified as follows: Type 1 As-plated without supplementary treatment Type 2 As-plated with supplementary chromate treatment Type 3 As-plated with supplementary phosphate treatment (Adhesion base for primer/paint) Unless a type is specified@ Type 2 shall be supplied. Safety - Hazardous Materials: While the materials@ methods@ applications@ and processes described or referenced in this specification may involve the use of hazardous materials@ this specification does not address the hazards that may be involved in such use. It is the sole responsibility of the user to ensure familiarity with the safe and proper use of any hazardous materials and to take the necessary precautionary measures to ensure the health and safety of all personnel involved.