FA-12397 / Laboratory measurement reporting / Member archive

Aliquot blank is subtracted after dilution correction · case 02

Aliquot blank is subtracted after dilution correction.

Member previewVariant 2 · 3 implementations · 6 checks per implementation

Case contract

Return signed (signal - aliquot_blank) * dilution as a Fraction string. Signals are rational strings and dilution is positive. Negative results remain reportable in this model.

Why this case matters

A deterministic synthetic laboratory reporting model isolates a software metadata contract; it is not a clinical procedure.

One recorded failure

Sample boundary fixture

This sample comes from the broken implementation of a controlled reproducer.

Boundary fixture	Actual	Expected	Outcome
blank scales with aliquot	`"28"`	`"24"`	Failed

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