Volumetric mass density
[Wikipedia] Bulk density, also called apparent density or volumetric density, is a property of powders, granules, and other "divided" solids, especially used in reference to mineral components (soil, gravel), chemical substances, (pharmaceutical) ingredients, foodstuff, or any other masses of corpuscular or particulate matter. It is defined as the mass of the many particles of the soil material divided by the total volume they occupy. The total volume includes particle volume, inter-particle void volume, and internal pore volume.
Bulk density
Apparent density
Volumetric density
Concept
SKOS Concept
definition
A statement or formal explanation of the meaning of a concept.
is in scheme
Relates a resource (for example a concept) to a concept scheme in which it is included.
preferred label
A resource has no more than one value of skos:prefLabel per language tag, and no more than one value of skos:prefLabel without language tag.
The range of skos:prefLabel is the class of RDF plain literals.
skos:prefLabel, skos:altLabel and skos:hiddenLabel are pairwise disjoint properties.
The preferred lexical label for a resource, in a given language.
alternative label
The range of skos:altLabel is the class of RDF plain literals.
An alternative lexical label for a resource.
has broader
Broader concepts are typically rendered as parents in a concept hierarchy (tree).
Relates a concept to a concept that is more general in meaning.
has narrower match
skos:narrowMatch is used to state a hierarchical mapping link between two conceptual resources in different concept schemes.
has exact match
skos:exactMatch is disjoint with each of the properties skos:broadMatch and skos:relatedMatch.
skos:exactMatch is used to link two concepts, indicating a high degree of confidence that the concepts can be used interchangeably across a wide range of information retrieval applications. skos:exactMatch is a transitive property, and is a sub-property of skos:closeMatch.