本文件为计算具有所有类型二氧化碳的钢铁厂的二氧化碳浓度提供了指导 工艺路线，通过定义边界、CO2排放因子和中间产品 所有类型的工艺路线都考虑了上游排放。特别是，本文件提供 适用于以下所列钢铁厂类型的ISO 14404系列指南。这份文件也 包括通用计算表，其中涵盖ISO 14404-1中的所有相关排放源， ISO 14404-2和ISO 14404-3，以帮助计算二氧化碳排放量。购买本文件时可获得的所有当前修订均包含在购买本文件中。

This document provides guidance for calculating the CO2intensity at steel plants with all types of process routes, by defining the boundary, CO2emission factors and the intermediate products for which upstream emissions are considered for all types of process routes. In particular, this document provides guidance applicable to the ISO 14404 series to the types of steel plants listed below. This document also includes the Universal Calculation Sheet, which covers all relevant emission sources from ISO 14404-1, ISO 14404-2 and ISO 14404-3 to assist the calculation of CO2emissions.All current amendments available at time of purchase are included with the purchase of this document.