The ISO 11303-2002 standard provides guidance on the selection of methods of protection against atmospheric corrosion of metals and alloys. The standard covers protection strategies for structural metals when used in atmospheric conditions, in accordance with the atmospheric corrosion classification of ISO 9223. The guidance helps in the selection of appropriate protection methods in atmospheric environments to reduce corrosion damage and extend the service life of equipment and products. The standard applies to the design of technical equipment and products and the optimization of their protection schemes.