Osmolarity / Osmolality Calculator implementation

Binding contract

This record describes what an executable surface must bind and validate. It does not claim that a public calculator, package, or production route is deployed.

Record owner

Guth Instruments

Lifecycle

verified-clean

Evidence ID

t4-207

Effect

Computation or source lookup only

Input and validation requirements

An extreme but representable JavaScript input produces Infinity instead of a finite result, and the unspecified concentration unit permits a 1000-fold output discrepancy.

Required corrections

No binding erratum is attached to this unique-name record. Implementers must still preserve the declared units, domain, and failure behavior.

Inspectable interface fixture

The sample below is evidence for interface and validation tests, not a production implementation.

{
  "inputs": {
    "solutes": [
      {
        "name": "glucose",
        "concentration": 5,
        "concentration_unit": "mmol/L",
        "particle_count": 1
      }
    ]
  },
  "expected_outputs": {
    "total_osmolarity_mOsm_per_L": 5
  },
  "working": "Osm = (5 mmol/L × 1) = 5 mOsm/L."
}

Other records

Sources and evidence

These pointers bind the page to evidence. They do not grant authority or collapse verification into deployment.

• VERIFIED_LEDGER.json
• evidence-tranche4/tranche4-results.json