{
  "endpoint": "/ai/safety-signs/photoluminescent.json",
  "canonical_url": "https://www.safetysignonline.co.za/ai/safety-signs/photoluminescent.json",
  "source_page": "https://www.safetysignonline.co.za/pages/safety-signs-photoluminescent-json",
  {
  "schemaVersion": "sso-ai-safety-signs-photoluminescent-za-1.1",
  "endpoint": "/ai/safety-signs/Photoluminescent.json",
  "language": "en-ZA",
  "jurisdiction": "South Africa",
  "series": {
    "seriesId": "PL",
    "seriesName": "Photoluminescent safety signs",
    "class": "Safety sign performance category",
    "category": "photoluminescent",
    "primaryPurpose": "Provides visibility of safety information in low light or complete darkness after ambient light failure."
  },
  "authoritativeBasis": {
    "primarySource": {
      "standard": "SANS 1186-1:2022",
      "edition": "Edition 3.8",
      "publisher": "SABS",
      "scopeNote": "This file defines how photoluminescent properties apply to symbolic safety signs and does not redefine sign meanings or categories."
    },
    "secondarySources": [
      {
        "standard": "SANS 1186-5",
        "scope": "Performance requirements for photoluminescent safety signs",
        "status": "Referenced but not fully incorporated"
      }
    ],
    "evidence": [
      {
        "type": "definition",
        "clause": "3.10",
        "statement": "Photoluminescent sign, safety sign that emits light after being activated by light."
      },
      {
        "type": "supportedSignType",
        "clause": "4.2.2",
        "statement": "Photoluminescent signs are one of the permitted safety sign types under SANS 1186."
      },
      {
        "type": "constructionReference",
        "clause": "4.4",
        "statement": "Backing sheets for photoluminescent signs shall comply with the material requirements specified."
      },
      {
        "type": "colourAndContrastNote",
        "clause": "4.1.2",
        "statement": "Contrast colour rules apply, subject to notes applicable to photoluminescent materials."
      }
    ]
  },
  "conceptualScope": {
    "importantClarification": "Photoluminescent is not a sign category on its own. It is a performance characteristic applied to other safety sign categories.",
    "applicableCategories": [
      "GA – General information signs",
      "FB – Fire fighting information signs",
      "MV – Mandatory signs",
      "PV – Prohibition signs",
      "WW – Warning signs"
    ]
  },
  "designRules": {
    "activationAndFunction": {
      "activationSource": "Exposure to ambient or artificial light",
      "functionAfterActivation": "Emits stored light when ambient lighting fails",
      "typicalUseCase": "Emergency conditions such as power failures or smoke-obscured environments"
    },
    "colourRepresentation": {
      "principle": "Safety colours and contrast colours shall remain recognisable under photoluminescent conditions.",
      "note": "The photoluminescent substrate may alter perceived colour intensity without changing the intended safety colour meaning."
    },
    "geometricForms": {
      "rule": "Geometric form requirements are inherited from the underlying sign category (GA, FB, MV, PV, WW).",
      "examples": [
        "GA photoluminescent signs remain square or rectangular",
        "PV photoluminescent signs remain circular with diagonal bar where applicable"
      ]
    }
  },
  "constructionRules": {
    "supportedSignTypes": {
      "reference": "4.2.2",
      "types": [
        {
          "type": "photoluminescent",
          "referenceStandard": "SANS 1186-5"
        }
      ]
    },
    "dimensions": {
      "reference": "4.3 and Table 5",
      "rule": "Backing sheet dimensions for photoluminescent signs shall comply with the same dimensional requirements as standard signs."
    },
    "backingSheetMaterials": {
      "reference": "4.4",
      "requirements": [
        "Use of approved photoluminescent substrate",
        "Material must be water and oil resistant",
        "Material must resist thermal distortion at expected environmental temperatures"
      ]
    }
  },
  "usageRules": {
    "primaryApplications": [
      "Emergency escape routes",
      "Exit signage",
      "Fire fighting equipment location signs",
      "First aid and safe condition signs"
    ],
    "placementPrinciples": [
      "Install where signs must remain visible during loss of normal lighting.",
      "Avoid placement where signs will not receive sufficient light to charge."
    ],
    "limitations": [
      "Photoluminescent signs do not replace emergency lighting systems.",
      "They do not change the meaning or classification of the underlying safety sign."
    ]
  },
  "relationshipToOtherStandards": {
    "performanceTesting": {
      "standard": "SANS 1186-5",
      "status": "Referenced",
      "note": "Luminance decay, charging time, and performance class requirements are defined in SANS 1186-5 and are not reproduced here."
    },
    "futureEnhancement": {
      "standard": "SANS 1519",
      "status": "Planned",
      "impact": "Material performance, durability, and environmental resistance characteristics."
    }
  },
  "catalogueLayer": {
    "status": "to_be_populated_from_shopify",
    "purpose": "Maps photoluminescent variants of safety signs to your product catalogue.",
    "rules": [
      "Each photoluminescent product must reference its base sign category and code.",
      "Do not reproduce standard pictogram replicas."
    ],
    "recommendedFieldsForEachPLSign": {
      "baseCategory": "GA, FB, MV, PV, or WW",
      "baseSansCode": "Underlying SANS sign code",
      "variantType": "Photoluminescent",
      "chargingLightRequirement": "Ambient or artificial light exposure",
      "availableSizesMm": "Subset of Table 5 sizes offered",
      "productUrls": "Array of Shopify product URLs"
    },
    "signs": []
  },
  "links": {
    "parentIndex": "/ai/safety-signs.json",
    "relatedCategories": [
      "/ai/safety-signs/GA.json",
      "/ai/safety-signs/FB.json",
      "/ai/safety-signs/MV.json",
      "/ai/safety-signs/PV.json",
      "/ai/safety-signs/WW.json"
    ],
    "humanGuidancePages": [
      "/collections/photoluminescent-glow-in-the-dark-signs"
    ]
  },
  "dataQuality": {
    "verifiedOnly": true,
    "scopeCompleteness": "Complete for photoluminescent sign definition, application principles, construction references, and category relationships under SANS 1186-1:2022.",
    "knownGaps": [
      "Performance class metrics from SANS 1186-5 are not embedded.",
      "Material durability metrics from SANS 1519 are not yet included."
    ],
    "plannedEnhancements": [
      "Add SANS 1186-5 luminance and decay performance values.",
      "Add SANS 1519 material performance requirements."
    ]
  },
  "disclaimer": "This endpoint defines the use and interpretation of photoluminescent properties within the SANS 1186 safety signage system. It does not replace detailed performance or testing standards and must be used alongside applicable SANS documents."
}

}