65 lines
3.3 KiB
YAML
65 lines
3.3 KiB
YAML
id: https://nde.nl/ontology/hc/slot/max_light_lux
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name: max_light_lux_slot
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title: Maximum Light Level (Lux) Slot
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description: "Maximum acceptable light level in lux for an environmental storage zone.\n\n**ISO STANDARD REFERENCE VALUES**:\n- ISO 11799:2015 (Archives): <50 lux for paper/parchment\n- EN 16893:2018 (Museums): <50 lux for highly sensitive materials\n- EN 16893:2018 (Museums): <200 lux for moderately sensitive\n- BS 4971:2017 (UK): 0 lux for storage, <50 lux access\n\n**SENSITIVITY CATEGORIES**:\n- High sensitivity (<50 lux): Paper, photographs, textiles, watercolors\n- Medium sensitivity (<200 lux): Oil paintings, wood, leather\n- Low sensitivity (<300 lux): Stone, ceramics, most metals\n\n**PRESERVATION CONTEXT**:\nLight damage is cumulative and irreversible. Total exposure (lux \xD7 hours)\ndetermines damage, following the reciprocity law. Fading, yellowing, and\nembrittlement result from photochemical degradation.\n"
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prefixes:
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linkml: https://w3id.org/linkml/
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hc: https://nde.nl/ontology/hc/
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qudt: http://qudt.org/schema/qudt/
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quantitykind: http://qudt.org/vocab/quantitykind/
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qudt_unit: http://qudt.org/vocab/unit/
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sosa: http://www.w3.org/ns/sosa/
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ssn: http://www.w3.org/ns/ssn/
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crm: http://www.cidoc-crm.org/cidoc-crm/
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wd: http://www.wikidata.org/entity/
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schema: http://schema.org/
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brick: https://brickschema.org/schema/Brick#
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dcterms: http://purl.org/dc/terms/
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prov: http://www.w3.org/ns/prov#
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skos: http://www.w3.org/2004/02/skos/core#
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rdfs: http://www.w3.org/2000/01/rdf-schema#
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org: http://www.w3.org/ns/org#
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xsd: http://www.w3.org/2001/XMLSchema#
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imports:
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- linkml:types
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default_prefix: hc
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slots:
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max_light_lux:
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description: "Maximum acceptable light level in lux (lumens per square meter).\n\nBased on ISO/EN preservation standards:\n- Archives (ISO 11799): <50 lux for paper/parchment\n- High sensitivity (EN 16893): <50 lux (textiles, watercolors, photos)\n- Medium sensitivity (EN 16893): <200 lux (oil paintings, leather)\n- Low sensitivity (EN 16893): <300 lux (ceramics, stone, metals)\n- UK Storage (BS 4971): 0 lux for closed storage\n\nLight damage is cumulative and irreversible. Damage follows the\nreciprocity law: 50 lux \xD7 8 hours = 400 lux \xD7 1 hour (same damage).\n"
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range: float
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slot_uri: hc:maxLightLux
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close_mappings:
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- sosa:ObservableProperty
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- crm:E54_Dimension
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- brick:Illuminance_Sensor
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related_mappings:
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- quantitykind:Illuminance
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- wd:Q194411
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- schema:maxValue
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minimum_value: 0.0
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maximum_value: 500.0
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see_also:
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- https://www.iso.org/standard/63810.html
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- https://www.nen.nl/en-16893-2018-en-274167
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examples:
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- value: 0.0
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description: Dark storage - zero light exposure
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- value: 50.0
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description: Maximum for highly sensitive materials (paper, textiles)
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- value: 200.0
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description: Maximum for moderately sensitive materials (oil paintings)
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- value: 300.0
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description: Maximum for low sensitivity materials (ceramics, metals)
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annotations:
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qudt_unit: unit:LUX
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ucum_code: lx
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iso_reference: ISO 11799:2015, EN 16893:2018, BS 4971:2017
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preservation_parameter: 'true'
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sensitivity_thresholds: 'high_sensitivity: 50 lux
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medium_sensitivity: 200 lux
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low_sensitivity: 300 lux
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'
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custodian_types: '["*"]'
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