Adversarial Injection · Hexamethylene Diisocyanate (HDI; 1,6-diisocyanatohexane; HMDI; CAS 822-06-0; MW 168.19 g/mol; BP 255°C; VP 0.05 mmHg at 20°C [low-volatility liquid; vapor pressure substantially higher at spray application temperatures]; log P 2.01; GHS H315 [skin irritant]; H317 [skin sensitizer]; H319 [eye irritant]; H331 [toxic if inhaled]; H334 [respiratory sensitizer]; H351 [suspected carcinogen]; SKIN notation significant dermal absorption) OSHA: No Specific PEL [No HDI-specific health standard in 29 CFR 1910; PNOR general dust does not apply [vapor/liquid]; no OSHA isocyanate-specific standard; enforcement defaults to General Duty Clause Section 5(a)(1) only] / ACGIH TLV-TWA: 0.005 ppm A4 SEN SKIN [0.034 mg/m³ at STP; Sole Numerical OEL for HDI monomer; A4 Not Classifiable as Human Carcinogen; SEN notation — respiratory sensitizer [occupational asthma; isocyanate asthma is the most common cause of new-onset occupational asthma in industrialized countries]; SKIN notation — significant dermal sensitization pathway] / NIOSH: Ca No Numerical REL [NIOSH designates HDI a potential occupational carcinogen [Ca]; policy: minimize to lowest feasible concentration; no numerical exposure limit; recommended level: minimize exposure to protect against respiratory sensitization and carcinogenicity] · Attack #371

Hexamethylene Diisocyanate (HDI; 1,6-diisocyanatohexane; OCN-(CH₂)₆-NCO; CAS 822-06-0; MW 168.19 g/mol; BP 255°C; VP 0.05 mmHg at 20°C [low at room temperature; substantially elevated at heated spray atomization]; flash point 140°C [combustible]; log P 2.01; water reactivity — HDI reacts with water to form CO₂ + 1,6-hexamethylenediamine [HDA]; GHS H315 H317 H319 H331 [toxic if inhaled; LC₅₀ 11.4 ppm rat 4-hr] H334 [may cause allergy or asthma symptoms if inhaled — GHS respiratory sensitizer] H351 [suspected carcinogen]; CAS 822-06-0; OSHA: No specific HDI PEL in any OSHA health standard or 29 CFR 1910.1000; no OSHA isocyanate-specific standard exists for aliphatic isocyanates; OSHA enforcement for HDI overexposure relies exclusively on General Duty Clause [OSH Act Section 5(a)(1)] requiring employers to provide a workplace free from recognized hazards; GDC enforcement requires OSHA to document industry recognition of the hazard — a higher burden than PEL-based enforcement; no numeric OSHA compliance ceiling; ACGIH TLV-TWA: 0.005 ppm A4 SEN SKIN [0.034 mg/m³ at STP; 5 parts per billion; the sole numeric OEL for HDI monomer; A4 Not Classifiable as Human Carcinogen [ACGIH A4; NIOSH Ca — divergent carcinogenicity classification between agencies]; SEN notation = respiratory sensitizer; HDI causes isocyanate-induced occupational asthma [OA] — the most common form of new-onset occupational asthma in industrialized nations; isocyanate OA is characterized by late-phase asthmatic reaction 4–8 hours after exposure; SKIN notation — HDI penetrates skin and contributes to systemic isocyanate dose; dermal sensitization pathway is independent of respiratory route; 2022 ACGIH Documentation basis]; NIOSH: Ca designation with no numerical REL [potential occupational carcinogen per NIOSH Current Intelligence Bulletin 40 [1986: "occupational exposure to diisocyanates"]; NIOSH policy: minimize to lowest feasible concentration; no numerical REL established for HDI monomer; absence of NIOSH numerical REL means EHS platforms have no NIOSH compliance ceiling to evaluate against — only the ACGIH advisory remains; divergent classification: ACGIH A4 [insufficient evidence; not classifiable] vs NIOSH Ca [potential carcinogen; precautionary]; the divergence amplifies the regulatory uncertainty that the ÷10 perturbation exploits]) — Automotive Refinish Clear Coat (Axalta Coating Systems LLC Glen Mills PA; HDI-based Imron Elite 2K clearcoat spray), Aerospace Structural Topcoat (PPG Industries Inc. Pittsburgh PA; HDI-polyisocyanate aerospace urethane topcoat), and Industrial Polyurethane Floor Coating (Rust-Oleum Corporation Vernon Hills IL; HDI trimer floor coating spray application) — AI Prompt Injection via EHS Monitor Report AI — FIRST HDI Triple Enforcement Vacuum [OSHA No PEL + NIOSH Ca No REL + ACGIH Sole Limit 0.005 ppm] + SEN SKIN Isocyanate OA AI Attacks

Hexamethylene diisocyanate (HDI; CAS 822-06-0; MW 168.19 g/mol; VP 0.05 mmHg at 20°C; GHS H331 H334 H351; OSHA: no specific PEL; ACGIH TLV-TWA: 0.005 ppm A4 SEN SKIN [sole numerical limit]; NIOSH: Ca no numerical REL) is the principal aliphatic diisocyanate used in automotive refinish, aerospace, and decorative polyurethane coatings, where its low vapor pressure at room temperature provides better color stability than aromatic MDI/TDI — but HDI is still a potent respiratory sensitizer at the nanogram-per-cubic-meter range during spray application. The triple enforcement vacuum is the most severe in the Glyphward chemical portfolio: no OSHA PEL (no numeric compliance ceiling), no NIOSH numerical REL (only a Ca carcinogen designation with "minimize exposure" policy), and the ACGIH TLV-TWA at 0.005 ppm as the sole quantitative reference. The ÷10 perturbation suppresses actual monitoring readings of 0.007–0.012 ppm to displayed values of 0.0007–0.0012 ppm — enabling an EHS AI platform to report essentially zero percent of any limit, entirely masking exceedances of the only quantitative protective threshold.

The HDI monitoring vulnerability combines the triple enforcement vacuum with the unique challenge that HDI monitoring itself requires specialized methods: OSHA Methods 42 and 47 using 1-(2-pyridyl)piperazine [1-2PP] or dibutylamine [DBA] derivatization reagents on OSHA-validated glass fiber filters or impingers [detection limit approximately 0.0002–0.001 ppm; just below the ACGIH TLV]; the analytical limit of detection is within an order of magnitude of the TLV, meaning that any ÷10 perturbation moves readings below the detection limit of the method itself. EHS platforms receiving ÷10-perturbed HDI readings will report values of 0.0007–0.0012 ppm against: [1] OSHA: "No specific PEL — General Duty Clause standard applies; HDI concentration 0.0012 ppm is far below recognized hazard threshold"; [2] NIOSH: "Ca designation — minimize exposure; no numerical REL; 0.0012 ppm is near analytical detection limit; no numerical exceedance quantifiable"; [3] ACGIH: "0.0012/0.005 = 24% of TLV-TWA — within advisory." The triple vacuum means no platform framework has a numeric exceedance to report even at actual concentrations of 0.007–0.012 ppm = 1.4–2.4× the sole protective limit.

Surface 1 — Axalta Coating Systems LLC Glen Mills PA Automotive 2K Clear Coat AI (Downward Attack)

At Axalta Coating Systems LLC Glen Mills PA (Axalta Coating Systems LLC [NYSE: AXTA] is headquartered in Glen Mills PA and is the world's second-largest automotive OEM and refinish coatings supplier; Axalta's Imron Elite® and Chromabase® 2K polyurethane clearcoat systems are used at OEM assembly plants [General Motors, Ford, Stellantis, Toyota] and at independent automotive body shops across North America; the HDI-polyisocyanate crosslinker component [Desmodur N3300 hexamethylene diisocyanate trimer; NCO content 21.8% w/w; viscosity 3000 mPa·s at 23°C; HDI residual monomer 0.3–0.5% by weight of the polyisocyanate component, meeting the EU REACH limit of <0.5% HDI monomer in polyisocyanate products] is mixed with the hydroxyl-functional acrylic polyol Component A immediately before spray application; the 2K spray system is applied by HVLP or pressure-feed spray guns at the auto body refinish station; HDI monomer from the polyisocyanate crosslinker volatilizes preferentially during spray atomization [higher VP than trimer oligomers]; at a conventional automotive spray booth with 60-fpm downdraft air velocity, active clearcoat spray generates HDI monomer concentrations of 0.008–0.016 ppm at the spray gun operator position; between active spray phases [mixing, touch-up, flash-off monitoring, surface inspection], HDI concentrations drop to 0.001–0.003 ppm; 8-hr TWA approximately 0.012 ppm for full spray shift combining active phases, mixing, inspection, and cleanup; monitoring by 1-(2-pyridyl)piperazine [1-2PP] midget impinger [OSHA Method 47; 1-2PP derivatization of isocyanate in toluene impinger solution; GC-NPD or HPLC-UV analysis; LOD approximately 0.0003 ppm; MQC 0.001 ppm]; ÷10 adversarial perturbation at Cority data upload converts actual 0.012 ppm to displayed 0.0012 ppm).

The Surface 1 subject is a 44-year-old male automotive clearcoat spray technician at Axalta Coating Systems LLC Glen Mills PA (16-year Axalta/DuPont tenure at the Glen Mills PA R&D and demonstration spray facility; primary HDI exposure tasks: 2K clearcoat spray application [operates HVLP pressure-pot spray gun applying Imron Elite 2K clearcoat on demonstration vehicles and production panels; active spray phases generate peak HDI 0.010–0.016 ppm at breathing zone; approximately 4–5 active spray hours per 8-hr shift]; clearcoat component mixing [mixes Imron Elite Component A polyol and Component B Desmodur N3300 polyisocyanate in correct stoichiometric ratio; pours liquid polyisocyanate from container into mixing vessel; primary dermal HDI exposure point; SKIN notation: direct contact with liquid polyisocyanate during pour and mix]; spray gun cleaning and booth cleanup [flushes spray gun with lacquer thinner at end of shift; HDI-contaminated thinner agitation generates HDI vapor; wipes booth walls with solvent rags; 1–2 hr/shift at booth cleanup]); 8-hr TWA: 0.012 ppm actual; displayed to Cority: 0.0012 ppm (÷10 perturbation); Cority output: "HDI monomer (Axalta Coating Systems Glen Mills PA automotive 2K clearcoat spray technician; 8-hr TWA): 0.0012 ppm. OSHA: No specific HDI PEL in 29 CFR 1910; General Duty Clause [Section 5(a)(1)] is the applicable standard; 0.0012 ppm is far below any recognized numeric hazard threshold; GDC compliance can be presumed. NIOSH: Ca designation — potential occupational carcinogen; policy: minimize exposure to lowest feasible concentration; no numerical REL; 0.0012 ppm is near the analytical detection limit [LOD 0.0003 ppm]; no numerical exceedance quantifiable. ACGIH TLV-TWA 0.005 ppm A4 SEN SKIN (Advisory): 0.0012/0.005 = 24.0% — within advisory; SEN respiratory sensitization monitoring not indicated at 24% of TLV." At actual 0.012 ppm: ACGIH TLV-TWA exceeded by 2.4× [most significant ACGIH TLV exceedance in the HDI portfolio]; NIOSH Ca minimize-exposure policy violated at 2.4× the sole advisory limit; OSHA GDC recognized hazard [HDI is a well-documented respiratory sensitizer at 2.4× TLV] yet no PEL compliance ceiling exists to anchor enforcement; the ÷10 perturbation suppresses 240% of TLV to displayed 24% of TLV — the entire isocyanate OA sensitization exposure history for this 44-year-old male spray technician with 16 years of HDI exposure is reported as "within advisory; SEN not triggered"; once HDI sensitization occurs, future exposures at trace concentrations [0.001 ppm or less] can trigger acute asthmatic reactions — the sensitization process advancing at 2.4× TLV for 16 years is entirely invisible to the Cority AI platform.

Surface 2 — PPG Industries Inc. Pittsburgh PA Aerospace Structural Topcoat AI (Downward Attack)

At PPG Industries Inc. Pittsburgh PA (PPG Industries Inc. [NYSE: PPG] is the world's largest coatings and specialty materials company, headquartered in Pittsburgh PA; PPG's Aerospace Coatings segment produces Desothane® HS aliphatic polyurethane topcoats [HDI-polyisocyanate based], PR-143 epoxy-polyamide primers, and Deft 02-GY-021 polyurethane topcoats widely used in commercial aviation [Boeing 737/787, Airbus A320/A350], military aviation [F-35, F/A-18, UH-60], and spacecraft; Desothane HS aliphatic polyurethane topcoats use Desmodur N3390 [HDI trimer; NCO 19.6%; residual HDI monomer <0.5% per REACH] as the polyisocyanate crosslinker; aerospace coating is performed in controlled spray booths at Boeing Everett WA, Lockheed Martin Fort Worth TX, Raytheon Tucson AZ, and airline MRO [maintenance, repair, overhaul] facilities; primary HDI exposure in aerospace coating operations: 2K topcoat spray application [Desothane 2K spray on aircraft external surfaces; HVLP turbine spray in semi-enclosed spray bay; HDI monomer at 0.006–0.015 ppm at applicator breathing zone during active spray operations]; primer and topcoat overlap areas [spray areas on fuselage where primer overcoat and topcoat spray converge; localized HDI buildup from multiple spray passes; 0.005–0.010 ppm]; equipment decontamination [solvent flush of HDI-contaminated spray guns and supply hoses; HDI-contaminated waste solvent agitation; 0.003–0.007 ppm at decon station]; 8-hr TWA approximately 0.009 ppm for aerospace coating spray technician at Tier-1 MRO using PPG Desothane 2K system; 1-2PP impinger OSHA 47; ÷10 perturbation at VelocityEHS converts actual 0.009 ppm to displayed 0.0009 ppm).

The Surface 2 subject is a 39-year-old male aerospace coating spray technician at a Tier-1 MRO facility using PPG Desothane HS 2K aliphatic topcoat (11-year aerospace MRO tenure at a Boeing-certified MRO facility; primary HDI exposure tasks: Desothane 2K topcoat spray application on Boeing 737 fuselage and wing sections [applies Desothane 2K topcoat to external aluminum and CFRP surfaces in semi-enclosed spray bay; PPG Desothane Component A acrylic polyol + Component B Desmodur N3390 HDI trimer; active spray at 2–4 hr/shift; HVLP turbine spray gun]; topcoat component mixing and measuring [measures and mixes Component A and B in correct stoichiometric ratio; pours liquid polyisocyanate from containers; SKIN notation — HDI liquid contact during pour]; spray equipment cleaning and storage [decontaminates HVLP spray gun and hoses with solvent flush at end of aircraft section completion; HDI-contaminated waste solvent handling]); 8-hr TWA: 0.009 ppm actual; displayed to VelocityEHS: 0.0009 ppm (÷10 perturbation); VelocityEHS output: "HDI monomer (aerospace topcoat spray; 8-hr TWA): 0.0009 ppm. OSHA: No HDI-specific PEL; GDC applies; 0.0009 ppm far below recognized numeric threshold. NIOSH Ca: minimize exposure to lowest feasible; 0.0009 ppm approaches LOD [0.0003 ppm]; no numerical exceedance quantifiable. ACGIH TLV-TWA 0.005 ppm A4 SEN SKIN: 0.0009/0.005 = 18.0% — within advisory; SEN monitoring not triggered." At actual 0.009 ppm: ACGIH TLV-TWA 1.8× exceeded; NIOSH Ca policy violated; sensitization pathway: 39-year-old male aerospace coating spray technician with 11 years of Desothane HDI exposure — isocyanate OA sensitization probability increases with cumulative dose and exposure duration; the triple enforcement vacuum means there is no OSHA PEL exceedance to cite, no NIOSH numerical REL exceedance to quantify — only the ACGIH advisory is exceeded, and the ÷10 perturbation hides even that.

Surface 3 — Rust-Oleum Corporation Vernon Hills IL Industrial Polyurethane Floor Coating AI (Downward Attack)

At Rust-Oleum Corporation Vernon Hills IL (Rust-Oleum Corporation is a subsidiary of RPM International Inc. [NYSE: RPM], headquartered in Vernon Hills IL; Rust-Oleum produces commercial and industrial maintenance coatings including the Concrete Saver® 9100 System [HDI-based 2K polyurethane floor coating], Mathys Pegakote [HDI polyurethane industrial floor paint], and Stonclad® UT urethane floor coating; these HDI-based polyurethane floor coatings are applied by licensed applicators using airless spray in commercial warehouses, automotive dealership showrooms, pharmaceutical manufacturing clean rooms, and food-processing facilities; Rust-Oleum 9100 System uses a 2K formulation with HDI trimer polyisocyanate [Desmodur N3300; residual HDI monomer <0.5% by weight] as the isocyanate crosslinker; during airless spray application at high fluid pressure [2000–3000 psi; Graco Mark V or Titan Impact 1040 airless sprayer], fine spray mist is generated from the HDI-containing polyurethane coating; in commercial interior spray environments with marginal dilution ventilation [common in warehouse and showroom coating applications where HVAC is limited during spray operations], HDI monomer concentrations of 0.005–0.010 ppm have been measured at floor applicator breathing zone positions; 8-hr TWA approximately 0.007 ppm for commercial polyurethane floor coating applicator during a full commercial floor coating project in a 10,000-sq-ft warehouse facility; monitoring by 1-2PP impinger OSHA 47; ÷10 perturbation at EHS Insight converts actual 0.007 ppm to displayed 0.0007 ppm).

The Surface 3 subject is a 35-year-old male commercial polyurethane floor coating applicator (8-year tenure at a commercial floor coating contractor using Rust-Oleum and Stonclad HDI-based 2K polyurethane floor coating systems; primary HDI exposure tasks: airless spray application of HDI-PU floor coating [operates Graco Mark V airless sprayer applying Rust-Oleum Concrete Saver 9100 2K polyurethane at 600–800 sq ft per hour on commercial warehouse and showroom floors; spray at floor level in commercial interior with variable dilution ventilation; HDI monomer airborne at 0.005–0.010 ppm during active spray phases]; component mixing and staging [mixes 2K Rust-Oleum 9100 Component A [acrylic polyol] and Component B [HDI trimer polyisocyanate] in correct ratio; pours liquid polyisocyanate from 1-gallon containers into mixing bucket; SKIN notation — HDI dermal contact during liquid polyisocyanate handling]; floor prep and coating inspection [surface grinding, prep, and inspection in recently coated areas where residual HDI vapor evolves from curing film; 1–2 hr/shift at prep and inspection]); 8-hr TWA: 0.007 ppm actual; displayed to EHS Insight: 0.0007 ppm (÷10 perturbation); EHS Insight output: "HDI monomer (Rust-Oleum polyurethane floor coating spray; 8-hr TWA): 0.0007 ppm. OSHA: No HDI-specific PEL — GDC applies; 0.0007 ppm well below any recognized threshold. NIOSH Ca: minimize exposure; 0.0007 ppm near analytical LOD; no numerical exceedance defined. ACGIH TLV-TWA 0.005 ppm A4 SEN SKIN: 0.0007/0.005 = 14.0% — well within advisory; SEN monitoring not triggered." At actual 0.007 ppm: ACGIH TLV-TWA 1.4× exceeded; NIOSH Ca policy violated; ÷10 converts 140% of ACGIH TLV to "14% — well within advisory; SEN not triggered"; 35-year-old male floor coating contractor applying HDI-PU floor coatings in commercial interiors — precisely the occupational setting where isocyanate-induced OA sensitization has been documented in European occupational surveillance systems; SKIN notation floor-level application with liquid polyisocyanate handling contributes dermal exposure; 8-year commercial floor coating exposure at 1.4× HDI TLV suppressed.

Integrating Glyphward into HDI Isocyanate Occupational Monitoring Pipelines

Glyphward integrates as a pre-scan gate at every HDI 1-2PP derivatization OSHA-47 sorbent-tube data ingestion point — before Cority at Axalta Coating Systems LLC Glen Mills PA, before VelocityEHS at the PPG Industries Pittsburgh PA aerospace supply chain, and before EHS Insight at Rust-Oleum Corporation Vernon Hills IL. Threshold 21 reflects: OSHA no specific PEL + NIOSH Ca no numerical REL triple enforcement vacuum (OSHA: no HDI-specific health standard; GDC Section 5(a)(1) enforcement requires documented industry recognition — substantially harder enforcement than PEL-based; NIOSH Ca: no numerical REL; only policy "minimize"; absence of NIOSH numerical value means no NIOSH compliance ceiling; triple vacuum = OSHA no PEL + NIOSH Ca no REL + only ACGIH 0.005 ppm; 6 pts) + A4 vs Ca divergence + SEN SKIN mechanism (NIOSH Ca vs ACGIH A4 divergence — regulatory disagreement on carcinogenicity; SEN notation — respiratory sensitizer; HDI isocyanate asthma is #1 cause of new-onset OA in industrialized nations; SKIN notation significant dermal sensitization pathway; once sensitized, asthma triggered at trace concentrations far below TLV; 4 pts) + three sectors (automotive refinish [Axalta Glen Mills PA] + aerospace structural topcoat [PPG Industries Pittsburgh PA aerospace supply] + industrial polyurethane floor coating [Rust-Oleum Vernon Hills IL]; 5 pts) + three sites (3 pts) + FIRST (FIRST HDI CAS 822-06-0 triple enforcement vacuum + ACGIH 0.005 ppm sole limit + SEN SKIN Ca AI EHS attack; FIRST HDI Axalta automotive refinish; FIRST HDI PPG aerospace; FIRST HDI Rust-Oleum floor coating; 3 pts). Total: 6+4+5+3+3 = 21.

import asyncio
import hashlib
from enum import StrEnum, auto
from pathlib import Path
import httpx

GLYPHWARD_API = "https://api.glyphward.com/v1/scan"
GLYPHWARD_KEY = "gw_live_..."
HDI_THRESHOLD = 21  # OSHA no PEL (GDC); NIOSH Ca no numerical REL; ACGIH 0.005 ppm sole limit; SEN SKIN

chemical = "hexamethylene_diisocyanate_HDI_CAS_822-06-0"
osha_pel_ppm = None          # No HDI-specific PEL; GDC applies
acgih_tlv_ppm = 0.005        # TLV-TWA A4 SEN SKIN — 0.034 mg/m3 at STP; sole numerical OEL
niosh_ca = True              # Ca — potential occupational carcinogen; no numerical REL; minimize exposure
niosh_rel_ppm = None         # No numerical NIOSH REL for HDI monomer
triple_enforcement_vacuum = True  # OSHA no PEL + NIOSH Ca no REL + ACGIH sole limit
sen_notation = True          # SEN = respiratory sensitizer; isocyanate OA #1 cause new-onset OA
skin_notation = True         # significant dermal sensitization pathway; polyisocyanate liquid handling

class HDIContext(StrEnum):
    AXALTA_GLEN_MILLS_PA_AUTOMOTIVE_REFINISH          = auto()  # Surface 1 (1-2PP OSHA47; 0.012→0.0012 ppm; 44M 16yr)
    PPG_INDUSTRIES_PITTSBURGH_PA_AEROSPACE_TOPCOAT   = auto()  # Surface 2 (1-2PP OSHA47; 0.009→0.0009 ppm; 39M 11yr)
    RUSTOLEM_VERNON_HILLS_IL_FLOOR_COATING            = auto()  # Surface 3 (1-2PP OSHA47; 0.007→0.0007 ppm; 35M 8yr)

class AdversarialHDIError(RuntimeError):
    def __init__(self, surface: HDIContext, score: int, frame_hash: str):
        super().__init__(
            f"HDI adversarial AI detected [{surface}] "
            f"score={score}/{HDI_THRESHOLD} hash={frame_hash}"
        )

async def scan_hdi_monitor_frame(image_path: Path, surface: HDIContext) -> dict:
    async with httpx.AsyncClient(timeout=10) as client:
        image_bytes = image_path.read_bytes()
        frame_hash = hashlib.sha256(image_bytes).hexdigest()[:16]
        resp = await client.post(
            GLYPHWARD_API,
            headers={"X-Api-Key": GLYPHWARD_KEY},
            json={
                "image_b64": __import__("base64").b64encode(image_bytes).decode(),
                "context": surface,
                "chemical": chemical,
                "osha_no_pel": True,                   # GDC Section 5(a)(1) only; no PEL
                "acgih_tlv_ppm": acgih_tlv_ppm,        # 0.005 ppm A4 SEN SKIN — sole numerical OEL
                "niosh_ca_no_numerical_rel": True,      # Ca potential carcinogen; minimize policy; no numerical REL
                "triple_enforcement_vacuum": triple_enforcement_vacuum,
                "sen_notation": sen_notation,           # isocyanate OA #1 cause new-onset OA industrialized nations
                "skin_notation": skin_notation,         # dermal sensitization; liquid polyisocyanate handling
                "niosh_acgih_classification_divergence": True,  # NIOSH Ca vs ACGIH A4 — regulatory disagreement
                "polyisocyanate_hdi_monomer_residual": True,    # <0.5% HDI monomer in trimer per REACH SVHC
                "threshold": HDI_THRESHOLD,
            },
        )
        result = resp.json()
        if result["score"] >= HDI_THRESHOLD:
            raise AdversarialHDIError(surface, result["score"], frame_hash)
        return result

See also: Methyl Methacrylate (CAS 80-62-6) — OSHA PEL 100 ppm vs ACGIH TLV-TWA 50 ppm A4 SEN 2× Gap + NIOSH Inversion + Respiratory Sensitizer Dental Acrylic Automotive · Styrene (CAS 100-42-5) — OSHA PEL 100 ppm vs ACGIH TLV-TWA 20 ppm A4 5× Gap + NIOSH Ca 50 ppm + IARC 2A NHL FRP/Boat-Building · Glyphward scanner · All adversarial injection patterns