Aims to specify and compare test methods for bimetallic corrosion of metals and alloys under atmospheric exposure conditions. Bimetallic corrosion refers to the phenomenon of accelerated corrosion of two different metals when they come into contact. The standard details three test methods: rectangular plates, washers and wires on bolts to evaluate the effect of bimetallic corrosion in the natural environment. The standard assists in the selection of suitable test methods and provides test procedures and interpretation of data to ensure an accurate assessment of metal corrosion behavior. Relevant normative references and definitions of terms are also clearly listed.