Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field unknown
Is Reference of Zuiverheid-nl#Sense
Чистота-bg#Sense
Καθαρότητα του μετάλλου-el#Sense
Pureté du métal-fr#Sense
Pureza del metal-es#Sense
Purity-en#Sense
Purezza del metallo-it#Sense
Pureza do metal-pt#Sense
Tisztaság-hu#Sense
Metals renhed-da#Sense