Individual: iah:DecontaminationFactor

nreo:abbreviation "DF" (en)
skos:definition "Effectiveness of a removal option is expressed as a Decontamination Factor (DF). The DF is the ratio of the amount of contamination initially present on a specific surface (e.g. buildings, paved surfaces, grass, soil, and shrubs, etc.) to that remaining after implementing the option. For example, a DF of 5 indicates that 80% of the activity can be removed." (en)
skos:prefLabel "decontamination factor" (en)

http://rdf.iit.demokritos.gr/2014/iah/DecontaminationFactor