ISO 14404-1:2024

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

This document specifies calculation methods for the total annual carbon dioxide (CO₂) intensity of the plant where steel is produced through a blast furnace.

NOTE          The steel plant is generally called “the integrated steel plant”.

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.

This document supports steel producers to establish CO₂ emissions attributable to a site.

Conversion to energy consumption and to consumption efficiency can be obtained using Annex A.

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