This document specifies requirements for the protection of iron and steel surfaces against corrosion by applying thermal-sprayed metallic coatings of zinc@ aluminium or their alloys. In this document@ requirements for the planning of the corrosion protection system and for the constructive design of the component to be protected are specified@ where thermal spraying is intended to be the process for the deposition of the metallic corrosion protection. Some field-related basic terms are defined and instructions for corrosion behaviour of the zinc and aluminium materials under different environment conditions are provided. Characteristic properties of the coating@ e.g. coating thickness@ minimum adhesive strength and surface appearance@ are specified and test procedures for thermal-sprayed corrosion protection coatings of zinc@ aluminium or their alloys are determined. This document is valid for applying thermal-sprayed zinc and aluminium protection coatings against corrosion in the temperature range between ?50 ??to +200 ?? taking into consideration the service conditions of any sealants used. Heat-resistant protective coatings of aluminium are covered by ISO 17834 and are not in the scope of this document. Other corrosion protection processes@ e.g. hot-dip galvanizing (galvanic coating)@ sherardizing@ electroplating or selection and deposition of organic coatings/paints are not in the scope of this document. Requirements for the manufacturing of thermal-sprayed coatings are specified in ISO 2063?2.