Calculation method of carbon dioxide emission intensity from iron and steel production — Part 1: Steel plant with blast furnace

ISO 14404-1:2013 specifies calculation methods for the carbon dioxide (CO₂) intensity of plant where steel is produced through a blast furnace.

It includes boundary definition, material and energy flow definition and emission factor of CO₂. Besides direct source import to the boundary, upstream and credit concept is applied to exhibit the plant CO₂ intensity.

ISO 14404-1:2013 supports the steel producer to establish CO₂ emissions attributable to a site. ISO 14404-1:2013 cannot be used to calculate benchmarks or to compare CO₂ intensities of production processes that are operated inside the site.