This document specifies the evaluation method of life cycle cost (LCC) and Life cycle assessment (LCA) of ductile iron pipes and fittings used for water applications and which are in compliance with EN 545. LCC evaluation is based on concepts and methods developed in ISO 15686 5. LCA evaluation is based on concepts and methods developed in ISO 15686 6, EN 15804:2012+A2:2019, EN ISO 14040 and EN ISO 14044. In this document, LCA is limited to the evaluation of environmental impact due to CO2 emissions associated with the consumption of natural resources or energy and waste disposal. The other categories of impacts are not in the scope of this document. Informative annexes are included in this document as a compilation of references, consensual factors, and scenarios with different DI pipelines.