{ "model": { "rank": 6542, "code": "thing-q10282403", "model_id": "vr.tr.surgical-mask", "name": "surgical mask", "purpose": "Enable an AI agent to recognise a surgical mask, assess its documented capabilities and present condition, and determine whether it is suitable for an intended use, needs replacement or requires further evidence.", "family": "Thing Registry", "category": "Physical world and living systems", "status": "research-draft", "kind": "thing", "plane": "PHY", "domain": "PHY.MAT", "industry": "", "version": "", "url": "/models/thing/q10282403/", "tier": 2, "score": 60, "payload": { "layer": "wikidata", "aliases": [], "aliasCount": 0, "merged": 0, "knownIn": 60, "facets": null, "markers": [], "lexicalClass": "", "senseRank": null, "alsoRegisteredAs": null, "source": { "dataset": "wikidata", "item": "Q10282403", "url": "https://www.wikidata.org/wiki/Q10282403", "license": "CC0 1.0" } }, "research": { "vercy": "1.0-draft", "publication": { "status": "research-draft", "adjudicationStatus": "unreviewed", "publishableCanonical": false, "generatedAt": "2026-09-07T15:11:23Z", "providers": [ "Codex", "Grok" ], "missingProviders": [], "pass": 2, "cost": { "grok": { "usd": 0.00419968, "turns": 1, "seconds": 70.7, "error": null }, "codex": { "seconds": 65.3, "error": "Reading additional input from stdin...\nOpenAI Codex v0.153.3\n--------\nworkdir: R:\\02_PROJECTS\\02_Meta_Models_Platforms\\Ver.cy\\current\\thing-registry-backlog\nmodel: gpt-6-astra\nprovider: openai\napproval: never\nsandbox: read-only\nreasoning effort: none\nreasoning summaries: none\nsession id: 01a07c6b-7718-7ff0-8ae5-c970a0f54b8b\n--------\nuser\nYou are drafting a Vercy meta-model for one registered thing. Answer as JSON only, no prose around it.\n\nThing: surgical mask\nRegistry id: vr.tr.surgical-mask\nPlane / domain: PHY / PHY.MAT\nRegistry definition: (none recorded)\nNames folded into this entry: (none" } } }, "metaModel": { "id": "THING-Q10282403", "registryId": "vr.tr.surgical-mask", "name": "surgical mask", "version": "0.1.0-research.1", "entryKind": "thing", "family": "Thing Registry", "domain": [ "PHY.MAT" ], "status": "research-draft" }, "canonicalUrl": "https://ver.cy/models/thing/q10282403/", "model": { "registry_id": "vr.tr.surgical-mask", "name": "surgical mask", "purpose": "Enable an AI agent to recognise a surgical mask, assess its documented capabilities and present condition, and determine whether it is suitable for an intended use, needs replacement or requires further evidence.", "definition": "A loose-fitting, disposable medical face covering intended to act as a barrier between the wearer's mouth and nose and the immediate environment, primarily to limit droplet emission from the wearer and to reduce splash and spray reaching the wearer, rather than to provide a sealed, high-efficiency filtration of inhaled air.", "scope_statement": "This model owns the identity, construction, claimed barrier performance, wearer interface and use condition of a surgical mask as a physical item, with links to product and batch evidence.", "in_scope": [ "Identification as a surgical mask from intended-use labelling and traceable product evidence", "Mask body, filtering material, nose adjustment and attachment construction", "Documented filtration, breathing resistance and fluid-barrier performance", "Coverage, orientation and attachment on a particular wearer", "Packaging, storage, use history and replacement condition" ], "out_of_scope": [ "Respirators and their respiratory-protection programmes", "Cloth face coverings and nonmedical disposable masks", "Face shields, protective eyewear and other protective equipment", "Clinical diagnosis, treatment and procedure-specific infection-control policy", "Manufacturing operations and laboratory test methods as independent systems", "Waste-management infrastructure and jurisdiction-wide disposal rules" ], "distinguishing_features": [ "Check whether traceable labelling identifies the product for surgical or medical mask use; pleats, colour and ear loops alone do not establish that identity.", "Distinguish documented surgical-mask performance from an unsupported claim that an item is merely a disposable face mask.", "Check whether respirator approval is also claimed and verified; a product carrying both designations requires a linked respirator model.", "Inspect for a mask body covering the nose and mouth with wearer attachments, distinguishing it from a transparent face shield.", "Determine whether documented performance concerns the mask material or a tested product, rather than assuming it establishes a seal on the wearer." ], "characteristics": [ { "name": "Product designation", "kind": "category", "unit_or_values": "Exact labelled designation; verified surgical mask, ambiguous or unverified", "why_it_matters": "Establishes whether the item belongs to this model." }, { "name": "Product and batch traceability", "kind": "relation", "unit_or_values": "Manufacturer, product reference, lot or batch and supporting records", "why_it_matters": "Connects an individual mask to the evidence and instructions that apply to it." }, { "name": "Barrier-performance evidence", "kind": "relation", "unit_or_values": "Test reports and declarations with method, edition, tested sample and result", "why_it_matters": "Allows capability claims to be assessed without treating unlike tests as interchangeable." }, { "name": "Reported filtration efficiency", "kind": "measurement", "unit_or_values": "Percent, separately identified by challenge type and test method", "why_it_matters": "Records a specific test result without implying equivalent protection in every exposure." }, { "name": "Reported breathing resistance", "kind": "measurement", "unit_or_values": "Value and unit as reported, with airflow, test area and method where available", "why_it_matters": "Supports interpretation of airflow resistance under the documented test conditions." }, { "name": "Reported fluid-barrier performance", "kind": "measurement", "unit_or_values": "Challenge pressure and unit, method and pass/fail result; unknown if undocumented", "why_it_matters": "Distinguishes supported splash-barrier claims from assumptions." }, { "name": "Attachment and nose adjustment", "kind": "category", "unit_or_values": "Ear loops, ties or other attachment; adjustable nose element present, absent or unknown", "why_it_matters": "Determines how the mask can be positioned and retained." }, { "name": "Wearer coverage", "kind": "state", "unit_or_values": "Nose and mouth covered or uncovered; stable or slipping; observed edge gaps", "why_it_matters": "Captures the actual wearing condition separately from product test results." }, { "name": "Mask condition", "kind": "state", "unit_or_values": "Dry or damp; intact or damaged; visibly clean or soiled; contamination history known or unknown", "why_it_matters": "Supports a replacement decision under applicable instructions." }, { "name": "Use and package status", "kind": "state", "unit_or_values": "Unopened, opened-unused, worn or discarded; package intact or compromised; labelled expiry status", "why_it_matters": "Prevents an uncertain or previously used item from being treated as new." } ], "affordances": [ "Identify the mask and retrieve instructions and evidence for its exact product reference.", "Compare documented mask capabilities with externally supplied requirements for an intended task.", "Inspect the body, attachments and packaging for conditions affecting use.", "Guide orientation and adjustment using product instructions, and record observed coverage.", "Flag replacement, withholding from use or evidence review when condition or suitability is unresolved.", "Route a used mask to an applicable disposal process using its use context." ] }, "sources": [ { "id": "en14683", "title": "EN 14683: Medical face masks - Requirements and test methods", "url": "https://www.en-standard.eu/csn-en-14683-medical-face-masks-requirements-and-test-methods/", "what_it_supports": "European classification Type I / II / IIR, BFE, splash resistance, and intended medical use", "url_status": "live" }, { "id": "astm-f2100", "title": "ASTM F2100 Standard Specification for Performance of Materials Used in Medical Face Masks", "url": "https://www.astm.org/f2100-23.html", "what_it_supports": "US performance levels 1-3 (BFE, PFE, differential pressure, fluid resistance, flammability)", "url_status": "live" }, { "id": "fda-n95-surgical", "title": "N95 Respirators, Surgical Masks, Face Masks, and Barrier Face Coverings", "url": "https://www.fda.gov/medical-devices/personal-protective-equipment-infection-control/n95-respirators-surgical-masks-face-masks-and-barrier-face-coverings", "what_it_supports": "Regulatory distinction among surgical masks, N95 respirators, face masks, and barrier face coverings in the United States", "url_status": "live" }, { "id": "cdc-respirators-vs-masks", "title": "Respirators and surgical masks: A comparison", "url": "https://www.cdc.gov/niosh/npptl/topics/respirators/disp_part/respsource3healthcare.html", "what_it_supports": "Fit, filtration, and intended-use differences between surgical masks and NIOSH-approved respirators", "url_status": "live" } ], "structure": { "bundles": [ { "id": "surgical-mask-identity", "name": "Surgical-mask identity", "description": "Establishes what the item is and which product claims apply to it.", "rationale": "Visually similar face coverings can have different intended uses and evidence.", "layers": [ { "id": "designation-and-boundaries", "name": "Designation and boundaries", "description": "Separates surgical-mask identity from appearance and adjacent protective-device categories.", "findings": [ { "id": "labelled-mask-role", "name": "Labelled mask role", "description": "Record the exact intended-use designation and any additional respirator designation without inferring either from shape.", "questions": [ { "text": "What exact wording identifies this product as a surgical or medical mask, and how does that wording map to this registry entry?", "kind": "definition", "id": "labelled-mask-role-q01" }, { "text": "Does the product also claim a respirator designation that requires a linked model and separate evidence?", "kind": "boundary", "id": "labelled-mask-role-q02" } ] } ] }, { "id": "mask-evidence-traceability", "name": "Mask evidence traceability", "description": "Connects the physical mask to the packaging, instructions and records supporting its identity.", "findings": [ { "id": "product-to-item-link", "name": "Product-to-item link", "description": "Record how the mask is associated with a manufacturer, product reference and batch, including uncertainty for loose masks.", "questions": [ { "text": "Which packaging or supply record links this mask to its product reference and batch?", "kind": "provenance", "id": "product-to-item-link-q01" }, { "text": "If the mask is loose or repackaged, which identity and performance claims can still be substantiated?", "kind": "boundary", "id": "product-to-item-link-q02" } ] } ] } ] }, { "id": "mask-body-and-barriers", "name": "Mask body and barriers", "description": "Records construction and the evidence supporting filtration, airflow and fluid-barrier claims.", "rationale": "A surgical mask's relevant capabilities depend on its construction and documented tests, not its appearance alone.", "layers": [ { "id": "body-construction", "name": "Body construction", "description": "Describes the mask body and features relevant to coverage and integrity.", "findings": [ { "id": "body-materials-and-geometry", "name": "Body materials and geometry", "description": "Record documented materials, body dimensions, seams and shaping features, distinguishing documentation from inspection.", "questions": [ { "text": "What body dimensions, pleats or shaped features determine the mask's available coverage?", "kind": "measurement", "id": "body-materials-and-geometry-q01" }, { "text": "Which material and layer descriptions are documented for this product, and which remain unknown?", "kind": "provenance", "id": "body-materials-and-geometry-q02" } ] } ] }, { "id": "tested-barrier-capabilities", "name": "Tested barrier capabilities", "description": "Keeps each performance claim attached to its test conditions and applicable product.", "findings": [ { "id": "filtration-and-airflow-results", "name": "Filtration and airflow results", "description": "Record filtration and breathing-resistance results with enough context to interpret their limits.", "questions": [ { "text": "What filtration results are reported, with which challenge types, test methods and tested product references?", "kind": "measurement", "id": "filtration-and-airflow-results-q01" }, { "text": "What breathing-resistance result is reported, in which units and under what airflow and test-area conditions?", "kind": "measurement", "id": "filtration-and-airflow-results-q02" } ] }, { "id": "fluid-barrier-claim", "name": "Fluid-barrier claim", "description": "Record whether resistance to fluid penetration is supported and what the evidence actually establishes.", "questions": [ { "text": "Which report supports the fluid-barrier claim for this exact product?", "kind": "provenance", "id": "fluid-barrier-claim-q01" }, { "text": "What challenge pressure, method and outcome are recorded, and what intended-use limits accompany them?", "kind": "measurement", "id": "fluid-barrier-claim-q02" } ] } ] } ] }, { "id": "wearer-interface", "name": "Wearer interface", "description": "Describes how the mask is oriented, attached and maintained over the wearer's nose and mouth.", "rationale": "Product-level test results do not establish the wearing condition of an individual mask.", "layers": [ { "id": "orientation-and-fastening", "name": "Orientation and fastening", "description": "Records the features and instructions needed to position and secure this mask.", "findings": [ { "id": "correct-placement", "name": "Correct placement", "description": "Identify the intended inner face, upper edge, fastening method and available adjustments.", "questions": [ { "text": "How do the manufacturer's instructions identify the inner face and upper edge without relying on an assumed colour convention?", "kind": "provenance", "id": "correct-placement-q01" }, { "text": "How should this product's ties, loops and nose element be adjusted to obtain stable coverage?", "kind": "action", "id": "correct-placement-q02" } ] } ] }, { "id": "coverage-during-use", "name": "Coverage during use", "description": "Captures observed coverage and compatibility with the wearer's activity and other equipment.", "findings": [ { "id": "coverage-and-displacement", "name": "Coverage and displacement", "description": "Record slipping, exposed nose or mouth, edge gaps and interference without equating visual inspection with a respirator fit test.", "questions": [ { "text": "Does the mask remain over the nose and mouth during the intended movement and speech?", "kind": "measurement", "id": "coverage-and-displacement-q01" }, { "text": "Do eyewear or other equipment displace the mask or prevent its attachments from functioning?", "kind": "boundary", "id": "coverage-and-displacement-q02" }, { "text": "If stable coverage cannot be obtained, what alternative size or product is allowed by the applicable instructions?", "kind": "action", "id": "coverage-and-displacement-q03" } ] } ] } ] }, { "id": "use-readiness-and-retirement", "name": "Use readiness and retirement", "description": "Tracks whether the mask can enter use, remain in use or should leave use.", "rationale": "A mask's suitability depends on its current condition and use history as well as its original specification.", "layers": [ { "id": "pre-use-readiness", "name": "Pre-use readiness", "description": "Assesses packaging, storage and physical condition against product instructions and task requirements.", "findings": [ { "id": "ready-for-intended-task", "name": "Ready for intended task", "description": "Combine inspection and traceable instructions with externally defined requirements while preserving unresolved suitability questions.", "questions": [ { "text": "Are the mask body, seams, attachments and relevant packaging intact, and is labelled expiry information available?", "kind": "measurement", "id": "ready-for-intended-task-q01" }, { "text": "Do storage history, any sterility claim and documented performance satisfy the supplied requirements for this task?", "kind": "boundary", "id": "ready-for-intended-task-q02" }, { "text": "Which missing evidence or failed condition requires the mask to be withheld from use?", "kind": "action", "id": "ready-for-intended-task-q03" } ] } ] }, { "id": "replacement-and-disposal", "name": "Replacement and disposal", "description": "Records changes during use and connects removal to the applicable handling and waste process.", "findings": [ { "id": "end-of-use-decision", "name": "End-of-use decision", "description": "Track dampness, soiling, damage, handling and prior use against documented replacement and reuse restrictions.", "questions": [ { "text": "Has the mask become damp, soiled, damaged, displaced or otherwise reached a replacement condition in the applicable instructions?", "kind": "measurement", "id": "end-of-use-decision-q01" }, { "text": "What do the product instructions and applicable policy permit after removal, including any proposed reuse or processing?", "kind": "action", "id": "end-of-use-decision-q02" }, { "text": "Which removal and disposal process applies given the mask's use and contamination history?", "kind": "action", "id": "end-of-use-decision-q03" } ] } ] } ] }, { "id": "evidence-and-external-alignment", "name": "Evidence and external alignment", "description": "What the world already says about this thing, gathered so the model can be checked against it.", "rationale": "A model that cannot be lined up against existing standards, identifiers and practice cannot be adopted by anyone who already uses them.", "layers": [ { "id": "reported-evidence", "name": "Reported evidence", "description": "Findings from the breadth pass, kept separate from the structural claims.", "findings": [ { "id": "evidence-kinds", "name": "Kinds and varieties", "description": "Reported by the breadth pass; each item needs checking against its source before it becomes normative.", "evidence": [ "Type I (EN 14683) - bacterial filtration for patients and others, not for clinical staff in high-risk procedures", "Type II (EN 14683) - higher bacterial filtration, general medical use by healthcare workers", "Type IIR (EN 14683) - Type II with splash resistance for procedures with fluid exposure", "ASTM Level 1 - low barrier, for procedures with low fluid exposure", "ASTM Level 2 - moderate barrier, for procedures with moderate fluid exposure", "ASTM Level 3 - high barrier, for procedures with high fluid exposure", "Procedure / isolation mask - often the same construction as a surgical mask, sold for patient or visitor use rather than sterile surgical fields", "Tie-on versus ear-loop - fastening variants of the same barrier class" ], "questions": [ { "id": "evidence-kinds-q01", "text": "Which of these kinds and varieties hold for the sense of surgical mask this model covers, and on what evidence?", "kind": "provenance" } ] }, { "id": "evidence-identifiers", "name": "Identifiers and schemes", "description": "Reported by the breadth pass; each item needs checking against its source before it becomes normative.", "evidence": [ { "scheme": "Wikidata", "value_or_pattern": "Q182749", "note": "item 'surgical mask'" }, { "scheme": "GMDN", "value_or_pattern": "35177", "note": "Mask, surgical, single-use (verify against current GMDN term)" }, { "scheme": "UMDNS / ECRI", "value_or_pattern": "12-454", "note": "Masks, Surgical (historical UMDNS code; confirm against current ECRI Universal Medical Device Nomenclature)" }, { "scheme": "FDA product code", "value_or_pattern": "FXX", "note": "Mask, Surgical (21 CFR 878.4040)" }, { "scheme": "HS / CN", "value_or_pattern": "6307.90", "note": "textile made-up articles; medical masks commonly classified here or under 9018 depending on construction and jurisdiction" } ], "questions": [ { "id": "evidence-identifiers-q01", "text": "Which of these identifiers and schemes hold for the sense of surgical mask this model covers, and on what evidence?", "kind": "provenance" } ] }, { "id": "evidence-standards-and-regulation", "name": "Standards and regulation", "description": "Reported by the breadth pass; each item needs checking against its source before it becomes normative.", "evidence": [ "EN 14683 (CEN) - Medical face masks: requirements and test methods; Types I, II, IIR", "ASTM F2100 (ASTM International) - Performance of materials used in medical face masks; Levels 1, 2, 3", "ISO 22609 (ISO) - Clothing for protection against infectious agents - Medical face masks - Test method for resistance against penetration by synthetic blood", "ISO 10993 series (ISO) - Biological evaluation of medical devices (biocompatibility of materials contacting skin)", "21 CFR 878.4040 (US FDA) - Surgical apparel; surgical masks as Class II medical devices, typically 510(k)", "NIOSH 42 CFR Part 84 (US CDC/NIOSH) - does not certify surgical masks; relevant because 'surgical N95' products must meet both NIOSH respirator and FDA surgical-mask requirements", "EU Medical Device Regulation (EU) 2017/745 - medical face masks as medical devices with CE marking under EN 14683", "YY 0469 / YY/T 0969 (NMPA, China) - surgical mask and disposable medical face mask requirements on the Chinese market" ], "questions": [ { "id": "evidence-standards-and-regulation-q01", "text": "Which of these standards and regulation hold for the sense of surgical mask this model covers, and on what evidence?", "kind": "provenance" } ] }, { "id": "evidence-real-world-use", "name": "Real-world use", "description": "Reported by the breadth pass; each item needs checking against its source before it becomes normative.", "evidence": [ "Worn by surgeons and circulating staff in operating rooms as source control and splash protection, typically over a sterile field", "Worn by nurses, dentists, and clinic staff during examinations, wound care, and aerosol-adjacent but not respirator-required procedures", "Issued to infectious or coughing patients as source control in wards, waiting rooms, and transport", "Stocked as procedure masks in emergency departments, ambulances, and dental operatories", "Distributed to the public during epidemic waves as a medical-looking alternative to cloth coverings, often without fit testing", "Used in food processing, clean assembly, and some laboratory settings as a droplet/spit barrier rather than as PPE against airborne hazards" ], "questions": [ { "id": "evidence-real-world-use-q01", "text": "Which of these real-world use hold for the sense of surgical mask this model covers, and on what evidence?", "kind": "provenance" } ] }, { "id": "evidence-measurements", "name": "Typical measurements", "description": "Reported by the breadth pass; each item needs checking against its source before it becomes normative.", "evidence": [ { "quantity": "Bacterial filtration efficiency (BFE)", "typical_range": "≥95 (Type I / ASTM Level 1) to ≥98 (Type II / IIR / ASTM Level 2-3)", "unit": "%" }, { "quantity": "Particle filtration efficiency (PFE) at ~0.1 µm (ASTM)", "typical_range": "≥95 (Level 1) to ≥98 (Level 2-3)", "unit": "%" }, { "quantity": "Differential pressure (breathability, EN 14683)", "typical_range": "<40 (Type I) to <60 (Type II / IIR) per cm²; ASTM ΔP typically <5.0 mm H2O/cm² (Level 1) to <6.0 (Levels 2-3)", "unit": "Pa/cm² or mm H2O/cm²" }, { "quantity": "Synthetic-blood splash resistance", "typical_range": "Type IIR and ASTM Level 1 at 80 mmHg; Level 2 at 120 mmHg; Level 3 at 160 mmHg", "unit": "mmHg" }, { "quantity": "Face coverage (nose-chin length of mask body)", "typical_range": "approximately 90-120 adult, smaller for paediatric sizes", "unit": "mm" }, { "quantity": "Intended duration of continuous wear", "typical_range": "typically one procedure or up to about 2-4 hours; discarded when wet, soiled, or damaged", "unit": "h" } ], "questions": [ { "id": "evidence-measurements-q01", "text": "Which of these typical measurements hold for the sense of surgical mask this model covers, and on what evidence?", "kind": "provenance" } ] }, { "id": "evidence-failure-modes-and-hazards", "name": "Failure modes and hazards", "description": "Reported by the breadth pass; each item needs checking against its source before it becomes normative.", "evidence": [ "Leakage around the unsealed edges: most inhaled and exhaled air bypasses the filter media, so performance is not equivalent to a fitted respirator", "Wetting and saturation from breath, sweat, or splash reduces filtration and increases breathing resistance", "Ear-loop or tie failure, nosepiece deformation, and gaping at the cheeks after talking or movement", "Touching the contaminated outer surface then the face or eyes (self-inoculation)", "False sense of protection against airborne pathogens (measles, tuberculosis, SARS-CoV-2 aerosols) when a respirator is indicated", "Flammability in oxygen-enriched or laser/electrosurgery environments if the mask is not rated for that use", "Counterfeit or substandard lots that fail BFE, splash, or bioburden claims", "Skin irritation, acne, and pressure marks from prolonged wear; rare latex or other material allergy depending on construction" ], "questions": [ { "id": "evidence-failure-modes-and-hazards-q01", "text": "Which of these failure modes and hazards hold for the sense of surgical mask this model covers, and on what evidence?", "kind": "provenance" } ] }, { "id": "evidence-regional-variation", "name": "Regional variation", "description": "Reported by the breadth pass; each item needs checking against its source before it becomes normative.", "evidence": [ "Europe and much of the world label medical face masks Type I / II / IIR under EN 14683; Type I is not intended for clinical staff", "United States uses ASTM F2100 Levels 1-3 and FDA 510(k) clearance; 'surgical mask' and 'procedure mask' are often used interchangeably in hospitals", "China distinguishes YY 0469 surgical masks from YY/T 0969 disposable medical face masks, with different splash and filtration requirements", "In public and retail speech, 'surgical mask' is often used for any pleated 3-ply disposable mask, including non-medical commodity masks", "Japan and Korea commonly use ear-loop 'medical' or 'hygiene' masks in daily life; regulatory classes still separate medical devices from general-use masks", "Some health systems require tie-on masks in sterile theatres and allow ear-loops only as procedure masks" ], "questions": [ { "id": "evidence-regional-variation-q01", "text": "Which of these regional variation hold for the sense of surgical mask this model covers, and on what evidence?", "kind": "provenance" } ] }, { "id": "evidence-neighbours", "name": "Neighbouring kinds and how to tell them apart", "description": "Reported by the breadth pass; each item needs checking against its source before it becomes normative.", "evidence": [ { "name": "N95 / FFP2 / KN95 filtering facepiece respirator", "difference": "A respirator is designed to seal to the face and be certified for inward leakage and particle filtration of inhaled air (NIOSH 42 CFR 84, EN 149); a surgical mask is not fit-tested and is primarily source control plus splash barrier." }, { "name": "Surgical N95 (medical respirator)", "difference": "Meets both NIOSH respirator certification and FDA surgical-mask (fluid resistance, flammability, biocompatibility) requirements; a plain surgical mask meets only the latter class of claims." }, { "name": "Cloth / community face covering", "difference": "Not a medical device under EN 14683 or 21 CFR 878.4040; typically washable textile without claimed BFE/PFE or splash rating." }, { "name": "Barrier face covering (ASTM F3502)", "difference": "A US consumer/workplace covering with specified leakage and filtration tests, explicitly not a surgical mask or respirator." }, { "name": "Respirator with exhalation valve", "difference": "Protects the wearer but can emit unfiltered exhaled droplets; a surgical mask is intended as source control and has no exhalation valve." }, { "name": "Face shield", "difference": "A visor for splash to the eyes and face; it does not cover the mouth and nose as a filtration barrier and is complementary, not a substitute, for a mask." } ], "questions": [ { "id": "evidence-neighbours-q01", "text": "Which of these neighbouring kinds and how to tell them apart hold for the sense of surgical mask this model covers, and on what evidence?", "kind": "provenance" } ] } ] } ] } ] }, "openQuestions": [ "Does the registry intend surgical mask to include every product labelled medical or procedure mask, or only a narrower designation?", "How should products with both surgical-mask and respirator designations link to neighbouring models while preserving one source of truth?", "Which current standards and jurisdiction-specific designations should be recognised, and how should their differing test results be represented without implying equivalence?", "What minimum evidence is sufficient to identify a loose mask and associate it with product-level performance claims?", "Which replacement, reuse, storage and sterility conditions can be generalised, and which must remain specific to product instructions and local policy?" ], "statistics": { "bundles": 5, "layers": 9, "findings": 17, "questions": 29 } }, "draft": { "generator": "vr.draft.v3", "status": "draft-generated", "researched": false, "archetype": "chemical substance or material", "method": "Written from the archetype playbook - what this kind of thing needs beyond identity and provenance - and from the structure that recurred across 6,333 models already researched by two engines. Applied to this entry by rule. No source was read for this thing and no claim here is researched. This entry carries no facets of its own, so they were inferred from its domain - a guess about a whole domain applied to one thing.", "facetsInferred": true, "nextPass": "A researcher replaces this draft with a sourced specification. Treat every sentence below as a proposal to argue with.", "purpose": "Give an agent a durable, checkable way to recognise a surgical mask, record what state it is in, and decide what may be done with it.", "whatItIs": "Enable an AI agent to recognise a surgical mask, assess its documented capabilities and present condition, and determine whether it is suitable for an intended use, needs replacement or requires further evidence.", "characteristics": { "substance": "material", "origin": "natural", "agency": "inert", "mobility": "varies" }, "whatYouCanDoWithIt": [ "observed and measured", "consumed or used up" ], "distinguishingFeatures": [ "Described in 60 Wikipedia languages, which is a measure of how widely the thing is known, not of how important it is." ], "openQuestionsForResearch": [ "Which of the bundles below does a real task actually need, and which are ceremony?", "What does this thing have that the facets do not capture at all?", "Which neighbouring kind is most often confused with a surgical mask, and on what evidence are they told apart?" ], "whatItIsMadeOf": "matter you can touch", "physicalCharacter": [ "Mobility varies between examples.", "Does nothing on its own; everything it does, something else did to it.", "These come from the domain this entry sits in rather than from the entry itself, so treat them as a first guess about the whole domain applied to one thing." ], "whatCanBeDoneWithIt": [ "observe it, measure it, record its state", "use it up, and then need more of it" ], "howItIsRecognised": [ "Not recognisable by sight in any reliable way. Appearance varies with grade, form and additives; identification is by label, by documentation, or by assay." ], "relatedModels": [], "standing": "Described in 60 Wikipedia languages, which measures how widely it is written about rather than how important or how common it is.", "structure": { "bundles": [ { "id": "identity-and-classification", "name": "Identity, naming and classification", "description": "How an agent tells one surgical mask from another, and a surgical mask from things that resemble it.", "rationale": "Recognition comes before every other claim. Without stable identity nothing else in the model can be trusted to be about the same thing twice.", "layers": [ { "id": "naming-and-identifiers", "name": "Names and identifiers", "description": "The names this thing goes by and the identifiers that survive translation and time.", "findings": [ { "id": "preferred-name-and-aliases", "name": "Preferred name, aliases and local names", "description": "Which name to use, which names mean the same thing, and which merely sound similar.", "questions": [ { "id": "preferred-name-and-aliases-q01", "text": "What identifies and describes the name of a surgical mask, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "preferred-name-and-aliases-q02", "text": "Who or what asserted this about the name of a surgical mask, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "preferred-name-and-aliases-q03", "text": "What may an agent decide or do once the name of a surgical mask is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] }, { "id": "stable-identifiers", "name": "Stable identifiers and external keys", "description": "Identifiers that keep pointing at this kind of thing across systems and languages.", "questions": [ { "id": "stable-identifiers-q01", "text": "What identifies and describes an identifier for a surgical mask, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "stable-identifiers-q02", "text": "Who or what asserted this about an identifier for a surgical mask, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "stable-identifiers-q03", "text": "What may an agent decide or do once an identifier for a surgical mask is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "classification-and-granularity", "name": "Classification and granularity", "description": "Where a surgical mask sits among kinds, and how finely a task needs to cut it.", "findings": [ { "id": "kind-and-parents", "name": "Kind, parents and neighbouring kinds", "description": "The classes this thing belongs to and the ones it is next to.", "questions": [ { "id": "kind-and-parents-q01", "text": "What identifies and describes the kind of a surgical mask, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "kind-and-parents-q02", "text": "Who or what asserted this about the kind of a surgical mask, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "kind-and-parents-q03", "text": "What may an agent decide or do once the kind of a surgical mask is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] }, { "id": "distinguishing-features", "name": "Distinguishing features", "description": "What separates a surgical mask from the things most often confused with it.", "questions": [ { "id": "distinguishing-features-q01", "text": "What identifies and describes what distinguishes a surgical mask, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "distinguishing-features-q02", "text": "Who or what asserted this about what distinguishes a surgical mask, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "distinguishing-features-q03", "text": "What may an agent decide or do once what distinguishes a surgical mask is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] }, { "id": "form-and-composition", "name": "Form, composition and condition", "description": "What a surgical mask is made of, what shape and size it takes, and what state it is in.", "rationale": "A physical thing can be measured, and a model that cannot record its measurements cannot support any decision that depends on them.", "layers": [ { "id": "form-and-dimensions", "name": "Form and dimensions", "description": "Shape, size, mass and the ranges these take across examples.", "findings": [ { "id": "measurable-dimensions", "name": "Measurable dimensions and their units", "description": "The quantities worth recording and the units they are recorded in.", "questions": [ { "id": "measurable-dimensions-q01", "text": "What identifies and describes the dimensions of a surgical mask, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "measurable-dimensions-q02", "text": "Who or what asserted this about the dimensions of a surgical mask, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "measurable-dimensions-q03", "text": "What may an agent decide or do once the dimensions of a surgical mask is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "material-and-composition", "name": "Material and composition", "description": "Materials, parts and how they are put together.", "findings": [ { "id": "parts-and-materials", "name": "Parts and materials", "description": "What a surgical mask is built from and which parts are replaceable.", "questions": [ { "id": "parts-and-materials-q01", "text": "What identifies and describes the composition of a surgical mask, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "parts-and-materials-q02", "text": "Who or what asserted this about the composition of a surgical mask, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "parts-and-materials-q03", "text": "What may an agent decide or do once the composition of a surgical mask is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "condition-and-integrity", "name": "Condition and integrity", "description": "Wear, damage, health and the difference between working and broken.", "findings": [ { "id": "condition-assessment", "name": "Condition, damage and health", "description": "How the condition of a surgical mask is judged and by whom.", "questions": [ { "id": "condition-assessment-q01", "text": "What identifies and describes the condition of a surgical mask, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "condition-assessment-q02", "text": "Who or what asserted this about the condition of a surgical mask, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "condition-assessment-q03", "text": "What may an agent decide or do once the condition of a surgical mask is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] }, { "id": "place-and-movement", "name": "Place and movement", "description": "Where a surgical mask is, how it got there and where it may go (varies).", "rationale": "A thing that can move needs its position recorded with a time, or every later claim about it is about a place it has left.", "layers": [ { "id": "location-and-placement", "name": "Location and placement", "description": "Position, containment and the reference frame the position is given in.", "findings": [ { "id": "position-and-frame", "name": "Position, container and reference frame", "description": "Where a surgical mask is, and what that position is measured against.", "questions": [ { "id": "position-and-frame-q01", "text": "What identifies and describes the location of a surgical mask, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "position-and-frame-q02", "text": "Who or what asserted this about the location of a surgical mask, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "position-and-frame-q03", "text": "What may an agent decide or do once the location of a surgical mask is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "movement-and-transfer", "name": "Movement and transfer", "description": "How a surgical mask is carried, installed or relocated.", "findings": [ { "id": "movement-events", "name": "Movement events and constraints", "description": "What counts as a movement, what records it and what limits it.", "questions": [ { "id": "movement-events-q01", "text": "What identifies and describes the movement of a surgical mask, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "movement-events-q02", "text": "Who or what asserted this about the movement of a surgical mask, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "movement-events-q03", "text": "What may an agent decide or do once the movement of a surgical mask is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] }, { "id": "state-and-lifecycle", "name": "State and lifecycle", "description": "The states a surgical mask passes through and the events that move it between them.", "rationale": "Most decisions about a thing depend on what state it is in now, which is a claim with a time on it, not a property.", "layers": [ { "id": "lifecycle-stages", "name": "Lifecycle stages", "description": "From coming into existence to ceasing to be one of these.", "findings": [ { "id": "stages-and-transitions", "name": "Stages and transitions", "description": "The stages worth naming and what moves a surgical mask between them.", "questions": [ { "id": "stages-and-transitions-q01", "text": "What identifies and describes the lifecycle of a surgical mask, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "stages-and-transitions-q02", "text": "Who or what asserted this about the lifecycle of a surgical mask, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "stages-and-transitions-q03", "text": "What may an agent decide or do once the lifecycle of a surgical mask is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "observations-and-status", "name": "Observations and current status", "description": "What is observed about a surgical mask, how often and by whom.", "findings": [ { "id": "observation-record", "name": "Observation record", "description": "How an observation of a surgical mask is recorded so that it can be superseded rather than overwritten.", "questions": [ { "id": "observation-record-q01", "text": "What identifies and describes an observation of a surgical mask, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "observation-record-q02", "text": "Who or what asserted this about an observation of a surgical mask, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "observation-record-q03", "text": "What may an agent decide or do once an observation of a surgical mask is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] }, { "id": "use-and-operation", "name": "Use and operation", "description": "What can be done with a surgical mask and what it takes to do it.", "rationale": "An agent that can recognise a thing but not act on it has only half a model.", "layers": [ { "id": "intended-use", "name": "Intended use and function", "description": "What a surgical mask is for, and what it is used for anyway.", "findings": [ { "id": "function-and-purpose", "name": "Function, purpose and misuse", "description": "The function a surgical mask performs and the uses that fall outside it.", "questions": [ { "id": "function-and-purpose-q01", "text": "What identifies and describes the use of a surgical mask, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "function-and-purpose-q02", "text": "Who or what asserted this about the use of a surgical mask, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "function-and-purpose-q03", "text": "What may an agent decide or do once the use of a surgical mask is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "handling-and-procedure", "name": "Handling and procedure", "description": "The steps, skills and tools involved in using a surgical mask.", "findings": [ { "id": "procedures-and-skills", "name": "Procedures, skills and required tools", "description": "What an agent needs before it can act on a surgical mask at all.", "questions": [ { "id": "procedures-and-skills-q01", "text": "What identifies and describes handling a surgical mask, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "procedures-and-skills-q02", "text": "Who or what asserted this about handling a surgical mask, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "procedures-and-skills-q03", "text": "What may an agent decide or do once handling a surgical mask is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "supply-and-consumption", "name": "Supply and consumption", "description": "Quantities, rates and what running out means.", "findings": [ { "id": "consumption-and-stock", "name": "Consumption, stock and replenishment", "description": "How much of a surgical mask there is and how fast it goes.", "questions": [ { "id": "consumption-and-stock-q01", "text": "What identifies and describes the supply of a surgical mask, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "consumption-and-stock-q02", "text": "Who or what asserted this about the supply of a surgical mask, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "consumption-and-stock-q03", "text": "What may an agent decide or do once the supply of a surgical mask is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] }, { "id": "composition-and-identity", "name": "Composition, grade and chemical identity", "description": "What surgical mask is made of and how pure the thing in hand is.", "rationale": "Grade decides what a substance may be used for, so a model that records only the name cannot support any decision about use.", "layers": [ { "id": "chemical-identity", "name": "Chemical identity", "description": "Formula, structure and the registry numbers that name it unambiguously.", "findings": [ { "id": "identity-record", "name": "Identity and registry numbers", "description": "What identifies this substance across suppliers and regulators.", "questions": [ { "id": "identity-record-q01", "text": "What formula, structure and registry identifiers name surgical mask unambiguously?", "kind": "definition" }, { "id": "identity-record-q02", "text": "Which related substances share a name in common use but not an identifier?", "kind": "boundary" } ] } ] }, { "id": "grade-and-impurities", "name": "Grade, purity and impurities", "description": "The specification a batch meets and what else is in it.", "findings": [ { "id": "specification", "name": "Specification and assay", "description": "How purity is stated and measured, and which impurities matter.", "questions": [ { "id": "specification-q01", "text": "What grades of surgical mask exist, how is purity assayed, and which impurities are limited?", "kind": "measurement" }, { "id": "specification-q02", "text": "Which use requires which grade, and what happens when a lower grade is substituted?", "kind": "action" } ] } ] } ] }, { "id": "properties-and-behaviour", "name": "Properties and behaviour", "description": "How surgical mask behaves under conditions an agent can measure or change.", "rationale": "Physical constants are the part of a substance model that transfers between contexts, and each needs its unit and its conditions.", "layers": [ { "id": "physical-constants", "name": "Physical constants", "description": "Values that hold for the pure substance, with their conditions.", "findings": [ { "id": "constants-record", "name": "Constants and conditions", "description": "The quantities worth recording and the state they apply in.", "questions": [ { "id": "constants-record-q01", "text": "What are the defining physical constants of surgical mask, in what units and under what conditions?", "kind": "measurement" }, { "id": "constants-record-q02", "text": "Which of these values change with grade or form rather than being fixed?", "kind": "boundary" } ] } ] }, { "id": "stability-and-reactivity", "name": "Stability and reactivity", "description": "What it reacts with, degrades into, and how it is stored.", "findings": [ { "id": "incompatibilities", "name": "Incompatibilities and degradation", "description": "What must not meet it, and what it becomes over time.", "questions": [ { "id": "incompatibilities-q01", "text": "What is surgical mask incompatible with, and what does it degrade into under storage?", "kind": "definition" }, { "id": "incompatibilities-q02", "text": "What storage and handling does that require, and who is competent to do it?", "kind": "action" } ] } ] } ] }, { "id": "hazard-and-regulation", "name": "Hazard classification and regulation", "description": "How surgical mask can harm, and what the law says about holding and moving it.", "rationale": "A substance model without its hazard class and its regulatory identity is unusable in exactly the situations that matter.", "layers": [ { "id": "hazard-class", "name": "Hazard classification", "description": "Classified hazards, exposure limits and protective measures.", "findings": [ { "id": "classified-hazards", "name": "Classified hazards and limits", "description": "The classification, the scheme it belongs to, and the limits set.", "questions": [ { "id": "classified-hazards-q01", "text": "How is surgical mask classified for hazard, under which scheme, and what exposure limits apply?", "kind": "definition" }, { "id": "classified-hazards-q02", "text": "What protection does handling require, and what must an agent refuse to do without it?", "kind": "action" } ] } ] }, { "id": "regulatory-identity", "name": "Regulatory identity and control", "description": "Registration, restriction and transport rules by jurisdiction.", "findings": [ { "id": "controls", "name": "Controls and jurisdiction", "description": "Where it is restricted and what the restriction attaches to.", "questions": [ { "id": "controls-q01", "text": "Which registrations, restrictions or transport rules cover surgical mask, and where?", "kind": "provenance" }, { "id": "controls-q02", "text": "Does the control attach to the substance, its concentration, or its intended use?", "kind": "boundary" } ] } ] } ] }, { "id": "provenance-and-evidence", "name": "Provenance, evidence and time", "description": "Where every claim about a surgical mask came from and when it held.", "rationale": "A claim without a source and a time cannot be superseded, only overwritten, and an agent that overwrites loses the ability to explain itself.", "layers": [ { "id": "source-and-authority", "name": "Source and authority", "description": "Who said it, on what evidence, and how strongly.", "findings": [ { "id": "claim-provenance", "name": "Claim provenance and confidence", "description": "The authority behind each claim about a surgical mask and how confident it is.", "questions": [ { "id": "claim-provenance-q01", "text": "What identifies and describes a claim about a surgical mask, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "claim-provenance-q02", "text": "Who or what asserted this about a claim about a surgical mask, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "claim-provenance-q03", "text": "What may an agent decide or do once a claim about a surgical mask is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "time-and-versions", "name": "Time, versions and supersession", "description": "When a claim was true, when it was learnt, and what replaced it.", "findings": [ { "id": "validity-and-supersession", "name": "Validity period and supersession", "description": "How an old claim about a surgical mask is retired without being erased.", "questions": [ { "id": "validity-and-supersession-q01", "text": "What identifies and describes the validity of a claim about a surgical mask, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "validity-and-supersession-q02", "text": "Who or what asserted this about the validity of a claim about a surgical mask, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "validity-and-supersession-q03", "text": "What may an agent decide or do once the validity of a claim about a surgical mask is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] } ] }, "statistics": { "bundles": 9, "layers": 20, "findings": 22, "questions": 60 } } } }