Definition & axiom
⚠ Conflicts with the ISO 15926-4 primary definition
Label (EN)
rupture disc
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 to burst/rupture at predetermined pressure to provide overpressure protection. While physical configuration varies (domed, flat, lined, etc.), these are implementation variants of the same functional identity. All definitions emphasize the calibrated burst function as the essential 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
PressureReliefFunction → PressureReliefProcess ⊑ FlowControl
▼
COPI-Core operation
FlowControl via process parent FlowControl
LLM rationale:
The identity-giving function is pressure relief through controlled rupture/bursting at predetermined pressure. This is the same function as pressure relief valves but realized through different mechanism (irreversible rupture vs. resettable opening). Reusing existing PressureReliefFunction from the enriched classes.
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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:
ISO 15926 defines it as an INSTRUMENT COMPONENT, but reviewing the parent candidates and enriched classes, the most appropriate genus is Instrument. Rupture discs are instrumentation devices that provide measurement-triggered response (burst at calibrated pressure). They are not valves (no controllable flow path) nor general pressure relief devices (which would be too broad). Instrument captures the calibrated, measurement-responsive nature.
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Expert review
3
Differentia Specifica
✓ done
∃participatesIn.IrreversibleRuptureProcess ⊓ ∃hasQuality.CalibrationPressure
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Conditions that distinguish
Rupture Disc
from sibling classes under genus
Instrument.
Only what is not already entailed by the genus.
Differentia expression
Differentia (natural language)
LLM rationale:
The key differentia is the irreversible rupture mechanism at calibrated pressure. This distinguishes from pressure relief valves (resettable), pressure gauges (no relief action), and other instruments (no physical protective action).
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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:
Every rupture disc requires a frangible element that ruptures and a seating surface to maintain position until burst pressure is reached. Additional components like holders are part of the assembly, not the disc itself.
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Expert review
5
Process Participation Signature ⟨I, O, T⟩
✓ done
PortionOfFluid → PortionOfFluid
▼
Inputs (I)
Outputs (O)
Transformation (T)
LLM rationale:
Single inlet receiving overpressurized fluid, single outlet providing relief path after rupture. The transformation is instantaneous pressure relief through mechanical failure of the barrier.
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Expert review
More
Alternative labels
none
▼
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 10 selected
▼
Select which CFIHOS/DEXPI properties inhere in every instance of Rupture Disc as
bfo:Quality subclasses.
Each selected property →
:RuptureDiscQuality ⊑ bfo:Quality, inheres in :RuptureDisc
Custom axioms
none
▼
Axioms not produced by the pipeline. Each is appended verbatim as an
rdfs:subClassOf restriction on Rupture Disc.
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 (3)
RUPTURE DISC — ClassOfInanimatePhysicalObject
Definition text hidden (copyrighted standard) — sign in to view, or follow the source link above.
cfihos V2.0
rupture disc — TagAndEquipmentClass
Definition text hidden (copyrighted standard) — sign in to view, or follow the source link above.
Rupture Disc — Class
Definition text hidden (copyrighted standard) — sign in to view, or follow the source link above.
Provenance tiers (3)
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 169 · claude-sonnet-4-20250514
Created 2026-04-16 18:11
Updated 2026-09-08 12:26
