This document specifies guidelines and requirements for conducting life cycle inventory (LCI) studies of steel products reflecting steel's capacity for closed-loop recycling, including:
a) specification of the functional unit used for LCI calculation of steel products;
b) definition of the system boundaries used for LCI calculation of steel products;
c) evaluation of scrap in LCI calculation of steel products;
d) evaluation of co-products in LCI calculation of steel products;
e) reporting of LCI calculation results of steel products.
The application of LCI results, including life cycle impact assessment (LCIA), is outside the scope of this document.
PUBLISHED
ISO 20915:2018
IN_DEVELOPMENT
ISO/FDIS 20915
50.20
Proof sent to secretariat or FDIS ballot initiated: 8 weeks
Jun 4, 2026
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