Normality / Equivalents 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

t6-028

Effect

Computation or source lookup only

Input and validation requirements

The extreme-magnitude vector causes JavaScript multiplication to overflow: 1e308 × 1e308 becomes Infinity. The instrument should validate finite numeric inputs and reject or clearly report the non-finite result.

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": {
    "solute": "HCl",
    "molarity": 0.1,
    "molarity_unit": "mol/L",
    "equivalence_factor": 1,
    "basis": "one H+ neutralized per HCl molecule"
  },
  "expected_outputs": {
    "normality": 0.1,
    "normality_unit": "eq/L"
  },
  "working": "N = M × n_eq = 0.1000 mol/L × 1 eq/mol = 0.1000 eq/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-tranche6/tranche6-results.json