ISO/NP 26458

Guideline for Calculation of Carbon Footprints for Calcium Silicate Cement products

Scope

This document provides guidelines for the calculation of carbon footprints for calcium silicate cement (CSC) products. It specifies principles, system boundaries, functional units, data requirements, and calculation procedures for assessing greenhouse gas (GHG) emissions and removals associated with the production and use stages of CSC products.
The guideline includes provisions for accounting CO₂ uptake through carbonation and reaction hardening processes unique to calcium silicate systems. It aims to ensure consistency, transparency, and comparability in the quantification and reporting of carbon footprints among CSC producers and users