Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field unknown
Is Reference of Rumvægt af porøst legeme-da#Sense
Φαινόμενη σχετική πυκνότητα-el#Sense
Bulk specific gravity-en#Sense
Relativ skrymdensitet-sv#Sense
Relative Rohdichte-de#Sense
Suhteellinen tilavuuspaino-fi#Sense
Densité apparente relative-fr#Sense