depth filter
IRI: https://spec.industrialontologies.org/ontology/construct/DepthFilter
Defined In: https://spec.industrialontologies.org/ontology/biopharma/Equipment/
SubClass Of: filter
Class Hierarchy
owl:Thing › bfo:entity › bfo:continuant › bfo:independent continuant › bfo:material entity › bfo:object › material artifact › filter › depth filter
Definition
filter that does not have a defined pore size or structure and which is designed to retain particles both on its surface and within its internal matrix
Explanatory Notes
Particles are entrapped or adsorbed both within and on the filter due to a randomly arranged matrix or structure that creates a tortuous flow path through the filter medium. This enables the retention of a broad range of particle sizes throughout the depth of the filter.
Examples
- Cellulose-based depth filter; polypropylene depth filter; glass fiber depth filter; cellulose acetate depth filter; polyester depth filter; diatomaceous earth (DE) depth filter; mixed cellulose ester depth filter; cellulose nitrate depth filter
Adapted From
- https://www.cytivalifesciences.com/en/us/solutions/lab-filtration/knowledge-center/glossary/depth-filter and https://www.iso.org/obp/ui#iso:std:iso:3857:-4:ed-1:v1:en:term:2.25
Primitive Class
This class is declared primitive and it does not have necessary and sufficient condiftions defined.
Primitive Rationale
There are insufficient constructs in the ontology to create necessary and sufficient conditions.
Formal Axioms
First-Order Logic Axioms
DepthFilter(x) → Filter(x)
Semi-Formal Natural Language Axioms
if x is a ‘depth filter’ then x is a ‘filter’
Description Logic
SubClassOf: constr:Filter
constr:DepthFilter DisjointWith: constr:MembraneFilter