Definition & axiom
⚠ Conflicts with the ISO 15926-4 primary definition
Label (EN)
demister
Label (PT-BR)
Definition (EN)
Definition (PT-BR)
Semi-formal axiom (Aristotelian)
Axiom type
LLM classification basis: function-based → ≡
The concept is primarily defined by its function of removing liquid droplets from gas streams through demisting/coalescence processes. Both sources emphasize the functional aspect - 'capable of demisting' and 'intended to catch fluid droplets' - rather than specific structural mechanisms.
Validation status
Why primitive (necessary only)
Reviewer notes
FOL theory & disjointness
First-order logic theory (generated)
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Disjoint with
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Expert review
Axiomatization steps
1
Identity-Giving Function
✓ done
DemistingFunction → DemistingProcess ⊑ MechanicalSeparation
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COPI-Core operation
MechanicalSeparation via process parent MechanicalSeparation
LLM rationale:
The identity-giving function is demisting - the removal of liquid droplets (mist) from gas streams through coalescence and gravity separation. This is distinct from general separation as it specifically targets liquid droplets entrained in gas phase.
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Expert review
2
Genus Proximus
✓ done
Separator · Assembly
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Genus (genus proximum)
Most specific superclass — may be a domain class like "Valve" or an IOF-Core root.
BFO/IOF-Core Root
bfo:Object branch
bfo:ObjectAggregate branch
bfo:ImmaterialEntity branch
LLM rationale:
A demister is a specialized type of separator designed specifically for liquid-gas separation where the liquid phase is dispersed as droplets in the gas. The genus 'Separator' is already enriched in the ontology with SeparationFunction. This is more specific than the generic 'Assembly' but captures the essential separation function.
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Expert review
3
Differentia Specifica
✓ done
∃bearerOf.DemistingFunction
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Conditions that distinguish
Demister
from sibling classes under genus
Separator.
Only what is not already entailed by the genus.
Differentia expression
Differentia (natural language)
LLM rationale:
The differentia is the specific DemistingFunction which is a subtype of SeparationFunction focused on liquid droplet removal from gas streams. This distinguishes it from other separators that target different phase combinations or use different mechanisms.
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Expert review
4
Necessary Parts
✓ done
no necessary parts
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Consider part-whole relations beyond subsumption:
hasComponentPartAtAllTimes (universal, structurally essential)
· hasComponentPartAtSomeTime (contingent, optional component)
LLM rationale:
These parts are essential to the demisting function - the demisting element provides coalescence capability while collection surfaces enable drainage of separated liquid.
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Expert review
5
Process Participation Signature ⟨I, O, T⟩
✓ done
PortionOfGas → PortionOfGas + PortionOfLiquid
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Inputs (I)
Outputs (O)
Transformation (T)
LLM rationale:
Demisters process gas containing liquid droplets and separate into cleaned gas and collected liquid through coalescence and gravitational settling.
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Expert review
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Alternative labels
none
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Synonyms / alternative labels (comma-separated) — skos:altLabel
Language auto-detected on export (PT if the label contains accents, EN otherwise).
Properties as BFO qualities
0 of 44 selected
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Select which CFIHOS/DEXPI properties inhere in every instance of Demister as
bfo:Quality subclasses.
Each selected property →
:DemisterQuality ⊑ bfo:Quality, inheres in :Demister
Custom axioms
none
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Axioms not produced by the pipeline. Each is appended verbatim as an
rdfs:subClassOf restriction on Demister.
Write the restriction block in Turtle syntax (without the leading
rdfs:subClassOf).
Example: [ owl:onProperty :hasPart ; owl:someValuesFrom :Wellhead ]
Cross-standard divergences
none detected yet
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Click "Detect divergences" to analyse cross-standard disagreements for this cluster.
