scope:

This standard applies to electrodeposited zinc and zinc-alloy coatings on iron and steel with Cr(VI)-free passivation. The zinc-alloy coatings contain nickel or iron as alloying agents (referred to as zinc/nickel and zinc/iron coatings, respectively).

The main purpose of the coatings or coating systems is to protect iron and steel components against corrosion.

The standard prescribes the designations to be used for the above coating systems and specifies minimum corrosion resistances to be achieved in specified test procedures and the minimum coating thicknesses required to achieve them.