primary standard substance
type: Thing
additional property: PropertyValue
  property ID: P279
  value: substance
additional property: PropertyValue
  property ID: P1889
  value: primary standard
confidence:
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    score pct: 0
    tier: long_tail
    components:
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      sitelinks norm: 0.0
      unique citations: 0
      unique citations norm: 0.0
      monthly pageviews: 0
      monthly pageviews norm: 0.0
  sitelinks: 0
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  yearly pageviews: 15
  pageview trend:
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    v: 10
  pageview trend:
    m: 2026-04
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  tier: long_tail
claims:
  P279:
    value: Q10683158
    source count: 0
    confidence: 0.0
    value label: substance
  P1889:
    value: Q911470
    source count: 0
    confidence: 0.0
    value label: primary standard
meta:
  wikidata id: Q108600165
  domain: general
  level: standard
  html url: https://4ort.xyz/entity/primary-standard-substance
  markdown url: https://4ort.xyz/entity/primary-standard-substance.md
  facts url summary: https://4ort.xyz/entity/primary-standard-substance/facts.json
  facts url standard: https://4ort.xyz/entity/primary-standard-substance/facts.json
  facts url full: https://4ort.xyz/entity/primary-standard-substance/facts.json
  data source: Wikidata (CC0 / public domain)
  license: https://creativecommons.org/publicdomain/zero/1.0/
  api version: v1
  served at: 2026-08-26T23:29:11.185022Z
  entity updated at: 2026-05-07T12:56:24.458635+00:00Z
  entity created at: 2026-05-07T12:56:24.458635+00:00Z