Definition & axiom
⚠ Conflicts with the ISO 15926-4 primary definition
Label (EN)
dew point analyser
Label (PT-BR)
Definition (EN)
Definition (PT-BR)
Semi-formal axiom (Aristotelian)
Axiom type
LLM classification basis: function-based → ≡
Identity is defined by the designed function of determining dew point of substances. Any instrument that performs this analysis function, regardless of the specific measurement principle (vapor pressure, chilled mirror, capacitive, etc.), is a dew point analyser.
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
DewPointMeasurementFunction → DewPointMeasurementProcess ⊑ MeasurementProcess
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COPI-Core operation
MeasurementProcess via process parent MeasurementProcess
LLM rationale:
The identity-giving function is the determination of dew point - the temperature at which water vapor in a gas begins to condense. This is a specific analytical measurement function distinct from other temperature or moisture measurement functions.
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Expert review
2
Genus Proximus
✓ done
Instrument · MaterialArtifact
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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:
Both source definitions indicate this is an analyzing instrument or process analyser. While 'process analyser' from ISO15926 is more specific, 'Instrument' is the appropriate genus level that encompasses all measurement and analytical devices. The enriched classes list shows many instruments but no 'ProcessAnalyser' class yet defined.
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Expert review
3
Differentia Specifica
✓ done
∃bearerOf.DewPointMeasurementFunction
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Conditions that distinguish
Dew Point Analyser
from sibling classes under genus
Instrument.
Only what is not already entailed by the genus.
Differentia expression
Differentia (natural language)
LLM rationale:
The differentia is the specific measurement function for dew point determination. This distinguishes it from other analytical instruments that measure different properties of substances.
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Expert review
4
Necessary Parts
✓ done
no necessary parts
▼
Consider part-whole relations beyond subsumption:
hasComponentPartAtAllTimes (universal, structurally essential)
· hasComponentPartAtSomeTime (contingent, optional component)
LLM rationale:
These are the fundamental components required for any dew point measurement - a chamber for the sample, temperature sensing, and condensation detection capability.
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Expert review
5
Process Participation Signature ⟨I, O, T⟩
✓ done
PortionOfGas → MeasurementInformationContentEntity
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Inputs (I)
Outputs (O)
Transformation (T)
LLM rationale:
Takes a gas sample containing water vapor and produces a measurement signal indicating the dew point temperature through analytical measurement process.
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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 12 selected
▼
Select which CFIHOS/DEXPI properties inhere in every instance of Dew Point Analyser as
bfo:Quality subclasses.
Each selected property →
:DewPointAnalyserQuality ⊑ bfo:Quality, inheres in :DewPointAnalyser
Custom axioms
none
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Axioms not produced by the pipeline. Each is appended verbatim as an
rdfs:subClassOf restriction on Dew Point Analyser.
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
▼
Click "Detect divergences" to analyse cross-standard disagreements for this cluster.
Source Definitions (2)
DEW POINT ANALYSER — ClassOfFunctionalObject
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cfihos V2.0
dew point analyser — TagAndEquipmentClass
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Provenance tiers (2)
Sources the pipeline cited while building this entry. Verbatim = the quote was copied word-for-word from that source; summary = paraphrased.
OWL/Turtle preview
Download .ttl
Numeric
COPI_* IRIs from copi-iri-map.tsv, with the readable name as a trailing comment. Names not yet in the map stay readable.
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ID 223 · claude-sonnet-4-20250514
Created 2026-04-16 18:12
Updated 2026-09-08 12:26
