exported
necessary
storage tank
IRI:
http://www.inf.ufrgs.br/ontologies/copi#Storagetank
Generated on 2026-04-13
Natural Language Definition
EN
A storage tank is a vessel that is designed to store fluids or materials for extended periods without transformation or active processing.
PT-BR
Um tanque de armazenamento é um vaso projetado para armazenar fluidos ou materiais por períodos prolongados sem transformação ou processamento ativo.
Formal Axioms
Semi-formal (Aristotelian)
Every storage tank is a tank that has the function to store materials for extended periods.
First-Order Logic Theory
Loading…
▸ Stored override
∀x(StorageTank(x) ↔ (Tank(x) ∧ ∃f(ExtendedStorageFunction(f) ∧ bearerOf(x,f))))
OWL 2 / Turtle
@prefix copi: <https://www.inf.ufrgs.br/ontologies/copi/> .
@prefix : <https://www.inf.ufrgs.br/ontologies/copi/> .
@prefix owl: <http://www.w3.org/2002/07/owl#> .
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
@prefix bfo: <http://purl.obolibrary.org/obo/> .
@prefix iof-core: <https://spec.industrialontologies.org/ontology/construct/> .
@prefix iof-av: <https://spec.industrialontologies.org/ontology/annotation/> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix qudt: <http://qudt.org/schema/qudt/> .
@prefix dcterms: <http://purl.org/dc/terms/> .
@prefix foaf: <http://xmlns.com/foaf/0.1/> .
@prefix apv: <http://inf.ufrgs.br/ontologies/apv#> .
### COPI — Core Ontology for Petroleum Installations
### Class module: StorageTank
<https://www.inf.ufrgs.br/ontologies/copi>
rdf:type owl:Ontology ;
dcterms:title "Core Ontology for Petroleum Installations (COPI)"@en ;
dcterms:title "Ontologia Core para Instalações de Petróleo (COPI)"@pt-br ;
dcterms:description "BFO/IOF-Core conformant ontology of equipment classes for petroleum production plants, developed using the five-step RDL enrichment method."@en ;
skos:scopeNote "Material artifacts (bfo:material_entity) that (i) are part of a petroleum production plant, and (ii) bear at least one function whose realization involves the transport (e.g. production and injection), processing (separation and other processes), control, monitoring, measurement, containment or offloading of material or energy."@en ;
skos:scopeNote "Artefatos materiais (bfo:material_entity) que (i) fazem parte de uma planta de produção de petróleo, e (ii) possuem ao menos uma função cuja realização envolve o transporte (p. ex. produção e injeção), processamento (separação e outros processos), controle, monitoramento, medição, contenção ou escoamento de material ou energia."@pt-br ;
skos:scopeNote "COPI provides high-level equipment categories defined by function to demonstrate the defined-class mechanism. Equipment subtypes are annotated with references to CFIHOS and PCA RDL terms. COPI is not a reference data library; organizations should use CFIHOS, PCA RDL, or ISO 14224 for comprehensive equipment classification."@en ;
skos:scopeNote "COPI fornece categorias de alto nível de equipamentos definidas por função para demonstrar o mecanismo de classe definida. Os subtipos de equipamentos são anotados com referências aos termos do CFIHOS e do PCA RDL. COPI não é uma biblioteca de dados de referência; organizações devem utilizar o CFIHOS, o PCA RDL ou a ISO 14224 para classificação abrangente de equipamentos."@pt-br ;
owl:versionInfo "1.1.0" ;
owl:imports <https://spec.industrialontologies.org/ontology/core/Core/> ;
owl:imports <http://purl.obolibrary.org/obo/bfo/2020/bfo.owl> ;
dcterms:creator "Nicolau Oyhenard dos Santos"@en ;
dcterms:contributor "Cauã Antunes" ;
dcterms:contributor "Haroldo Rojas" ;
dcterms:contributor "Rafael Petry" ;
dcterms:contributor "Régis Romeu" ;
dcterms:contributor "Mara Abel" ;
dcterms:isPartOf <https://inf.ufrgs.br/projetos/OntoKG> ;
dcterms:publisher "Universidade Federal do Rio Grande do Sul (UFRGS)"@en ;
dcterms:license <https://creativecommons.org/licenses/by/4.0/> ;
dcterms:created "2026-04-08"^^xsd:date ;
dcterms:modified "2026-10-08"^^xsd:date ;
apv:GlobalMinLanguageCoverage "en pt-br" ;
apv:ClassURIFormationRule "https://www[.]inf[.]ufrgs[.]br/ontologies/copi/(COPI_[0-9]{7}|[A-Z][A-Za-z0-9]*)" ;
apv:ClassMinAnnotationCoverage "rdfs:label https://spec.industrialontologies.org/ontology/annotation/naturalLanguageDefinition" .
iof-av:naturalLanguageDefinition rdf:type owl:AnnotationProperty ;
apv:MinAnnotationLength 20 .
### Identity-giving function
:COPI_0000197 rdf:type owl:Class ; # StorageFunction
rdfs:subClassOf :COPI_0000025 ; # ContainmentFunction
rdfs:subClassOf [
rdf:type owl:Restriction ;
owl:onProperty bfo:BFO_0000054 ; # realizedIn
owl:allValuesFrom :COPI_0000651 # StorageProcess
] ;
rdfs:subClassOf [
rdf:type owl:Restriction ;
owl:onProperty bfo:BFO_0000054 ; # realizedIn
owl:someValuesFrom :COPI_0000651 # StorageProcess
] ;
rdfs:label "storage function"@en ;
rdfs:label "função de armazenamento"@pt-br .
:COPI_0000025 rdf:type owl:Class . # ContainmentFunction
### Process type
:COPI_0000651 rdf:type owl:Class ; # StorageProcess
rdfs:subClassOf :COPI_0000009 ; # MaterialContainment
rdfs:label "storage process"@en ;
rdfs:label "processo de armazenamento"@pt-br .
:COPI_0000009 rdf:type owl:Class . # MaterialContainment
:COPI_0000651 # StorageProcess
rdfs:subClassOf [
rdf:type owl:Restriction ;
owl:onProperty iof-core:hasInput ;
owl:someValuesFrom :COPI_0000037 # PortionOfFluid
] ;
rdfs:subClassOf [
rdf:type owl:Restriction ;
owl:onProperty iof-core:hasSpecifiedOutput ;
owl:someValuesFrom :COPI_0000037 # PortionOfFluid
] .
### Equipment universal: StorageTank
:COPI_0000151 rdf:type owl:Class ; # StorageTank
rdfs:subClassOf :COPI_0000158 ; # Vessel
rdfs:subClassOf [
rdf:type owl:Restriction ;
owl:onProperty iof-core:hasFunction ; # Object branch (MaterialArtifact/Assembly/Object/FiatObjectPart)
owl:someValuesFrom :COPI_0000197 # StorageFunction
] ;
rdfs:label "storage tank"@en ;
rdfs:label "tanque de armazenamento"@pt-br ;
iof-av:naturalLanguageDefinition "A storage tank is a vessel that is designed to store fluids or materials for extended periods without transformation or active processing."@en ;
skos:definition "A storage tank is a vessel that is designed to store fluids or materials for extended periods without transformation or active processing."@en ;
iof-av:naturalLanguageDefinition "Um tanque de armazenamento é um vaso projetado para armazenar fluidos ou materiais por períodos prolongados sem transformação ou processamento ativo."@pt-br ;
iof-av:semiFormalNaturalLanguageAxiom "Every storage tank is a tank that has the function to store materials for extended periods."@en ;
iof-av:firstOrderLogicAxiom "∀x(StorageTank(x) ↔ (Tank(x) ∧ ∃f(ExtendedStorageFunction(f) ∧ bearerOf(x,f))))"@en ;
iof-av:isPrimitive "true"^^xsd:boolean ;
skos:altLabel "tank"@en ;
skos:definition "[ISO 15926-4] A <STORAGE TANK> is an <ARTEFACT> and a <TANK> that is intended for storage"@en .
# Disjointness: StorageTank and Mixer
[] rdf:type owl:AllDisjointClasses ;
owl:members ( :COPI_0000151 :COPI_0000314 ) . # StorageTank, Mixer
Axiomatization Decision Log
1
Identity-Giving Function
Function class
StorageFunction
⊑ ContainmentFunction
Realized in
StorageProcess
⊑ MaterialContainment
Storage is the identity-giving function that distinguishes storage tanks from other tank types like reaction tanks, mixing tanks, or separation vessels. This function is already used in the enriched 'tank' class, confirming its appropriateness for this subtype.
✓
Expert review — Accepted
2
Genus Determination
Vessel
Tank is the most specific appropriate superclass from the parent_candidates list and is already enriched in our ontology (function: StorageFunction, genus: Vessel). Storage tank is a specialized type of tank with additional constraints on duration and purpose of containment.
✓
Expert review — Accepted
"genus: Tank → Vessel — 'tank' intermediate class removed; Tank e StorageTank eram equivalentes nas fontes normativas (ISO 15926: 'a STORAGE TANK is a TANK intended for storage' — quase circular). StorageTank vai direto para Vessel com StorageFunction ⊆ ContainmentFunction."
3
Necessary Parts
No necessary parts recorded (concept may be primitive at this level).
Storage tanks have specialized structural requirements for long-term service that differ from process tanks, including enhanced corrosion protection and foundation interfaces.
✓
Expert review — Accepted
"is_subtype_specific corrigido para False: StorageTankShell e StorageTankBottom são universais"
4
Process Participation Signature ⟨I, O, T⟩
Inputs (I)
PortionOfFluid
— liquid or gas for storage
Outputs (O)
PortionOfFluid
— same composition as input, possibly with minor quality changes due to settling or stratification
Transformation (T)
minimal transformation - primarily passive containment with possible settling, stratification, or minor quality changes over time
Storage tanks maintain material composition while providing long-term containment, unlike process vessels that actively transform contents.
✓
Expert review — Accepted
5
Axiom Mode Decision
Necessary conditions only
— modelled as a primitive universal
(⊑, SubClassOf). Identity is grounded in designed
function and cannot be reduced to a property checklist.
✓
Expert review — Accepted
Disjointness Axioms
Mixer
C4: Mixer. Storage tanks are designed for passive containment while reaction vessels, mixers, and active process vessels are designed for material transformation or active processing - incompatible process signatures.
Cross-Standard Observations
Only ISO 15926 provides a definition. The various subtypes mentioned (atmospheric, cone roof, double wall, pressure storage) confirm the functional basis - they are all storage tanks with different structural configurations.
