Letter: I
Industrial accident Damaging event due to violent causes during work and leading to death or permanent invalidity (absolute or partial) or a temporary invalidity causing absence from work.
ISO 14001 A standard drawn up by the International Organisation for Standardization (ISO), specifying the requisites of an Environmental Management System that permits anorganization to formulate an environmental policy and to establish objectives, taking into account legislative factors and information concerning significant environmental impacts.
Intermediate energy sources Energy sources deriving from the conversion of primary energy into other forms. The two most common examples are electricity and steam.