Definition & axiom
⚠ Conflicts with the ISO 15926-4 primary definition
Label (EN)
vacuum column
Label (PT-BR)
Definition (EN)
Definition (PT-BR)
Semi-formal axiom (Aristotelian)
Axiom type
LLM classification basis: structure-based → ⊑
A vacuum column is defined primarily by its structural capability to withstand outside pressure (vacuum conditions) rather than by a unique function. It performs the same distillation function as any distillation column but with a specific pressure-handling characteristic.
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
DistillationFunction → DistillationProcess ⊑ MassTransfer
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COPI-Core operation
MassTransfer via process parent MassTransfer
LLM rationale:
The identity-giving function is distillation - the separation of liquid mixtures based on differences in boiling points. This is the same function as any distillation column; the vacuum aspect is a structural/operational characteristic.
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Expert review
2
Genus Proximus
✓ done
DistillationColumn · 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:
All three sources explicitly state that a vacuum column IS a distillation column. This is the most specific superclass available. DistillationColumn would itself be an Assembly (complex equipment with multiple integrated components like trays, reboiler, condenser) designed for separation processes.
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Expert review
3
Differentia Specifica
✓ done
∃bearerOf.VacuumPressureResistanceQuality
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Conditions that distinguish
Vacuum Column
from sibling classes under genus
DistillationColumn.
Only what is not already entailed by the genus.
Differentia expression
Differentia (natural language)
LLM rationale:
The defining characteristic is the structural capability to withstand outside pressure during vacuum operation. This is a quality of the vessel design, not a functional difference from other distillation columns.
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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:
Vacuum columns require specialized structural components to handle the external pressure loads and maintain vacuum conditions, beyond what a standard distillation column requires.
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Expert review
5
Process Participation Signature ⟨I, O, T⟩
✓ done
FluidMixture → PortionOfLiquid + PortionOfLiquid
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Inputs (I)
Outputs (O)
Transformation (T)
LLM rationale:
Same separation process signature as any distillation column, but operated under vacuum to enable separation at lower temperatures
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Expert review
More
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 13 selected
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Select which CFIHOS/DEXPI properties inhere in every instance of Vacuum Column as
bfo:Quality subclasses.
Each selected property →
:VacuumColumnQuality ⊑ bfo:Quality, inheres in :VacuumColumn
Custom axioms
none
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Axioms not produced by the pipeline. Each is appended verbatim as an
rdfs:subClassOf restriction on Vacuum Column.
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.
