In the impact assessment phase, the results of the inventory analysis are assigned to
impact categories associated with resource use, human health and ecological
consequences. This phase includes the following mandatory elements: selection of
impact categories, category indicators and characterisation models, classification
(assignment of inventory analysis results to the impact categories) and
characterisation (calculation of category indicator results). Besides these mandatory
elements, the impact assessment phase may also include the following optional
elements: normalisation (calculation of the magnitude of category indicator results
relative to reference value(s)), grouping (sorting and possibly ranking of the impact
categories), and weighting (conversion and possibly aggregation of the indicator
results across impact categories).
In the impact assessment phase, the results of the inventory analysis are assigned toimpact categories associated with resource use, human health and ecologicalconsequences. This phase includes the following mandatory elements: selection ofimpact categories, category indicators and characterisation models, classification(assignment of inventory analysis results to the impact categories) andcharacterisation (calculation of category indicator results). Besides these mandatoryelements, the impact assessment phase may also include the following optionalelements: normalisation (calculation of the magnitude of category indicator resultsrelative to reference value(s)), grouping (sorting and possibly ranking of the impactcategories), and weighting (conversion and possibly aggregation of the indicatorresults across impact categories).
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