Retain uncertainty notation with the reported value

Transcribe first, interpret with context

Keep it attached to the value so the workbook does not imply a level of precision the source never claimed.

Before paying for technical-document extraction, inspect how the source meaning survives in the output. ParseMill’s public material-register example gives you a synthetic PDF and downloadable evidence to compare. Bring your own document type and acceptance checks to a scope discussion; the self-service invoice plan is a separate offer.

Separate a faithful transcription from an expert interpretation. A register can record a central value, uncertainty text and source context while leaving the uncertainty type or coverage probability unresolved when the document does not state it.

Use this structured worksheet

The fixture includes an explicit expanded-uncertainty note. Another document might not. Do not copy this fixture’s interpretation into a report that supplies only the raw expression. The note itself should have a source reference so a reviewer can inspect its scope.

NIST: Expanded uncertainty and coverage factor explains expanded uncertainty and coverage factors. A factor’s meaning belongs with the uncertainty statement, rather than being inferred from familiar-looking notation.

Capture the evidence needed for review

1. Record the full result, units, signs and uncertainty notation as text. Preserve parentheses, superscripts and footnote markers.
2. Locate any definition of the additional term. Record the exact note and the results to which it applies.
3. Separate transcribed components from interpreted fields. Mark unstated uncertainty type, coverage factor or probability as unstated.
4. Ask a qualified reviewer to confirm any interpretation needed for a technical decision. Keep their rationale and the source version with the derived analysis, including the intended decision and any remaining interpretation limits.

NIST: Basic uncertainty definitions describes uncertainty associated with a measurement result. It should not be confused with a transcription error or with a requirement imposed on a product.

Watch for lost distinctions

Do not move ±0.2 into a minimum-maximum specification column merely because the destination has no uncertainty field. Nor should a spreadsheet formula silently convert the expression into two acceptance limits. Those transformations can imply a decision rule that was never supplied.

Uncertainty notation in parentheses may refer to final digits under a particular convention. If the report does not define that convention, retain the notation and seek clarification rather than assuming it matches a familiar scientific publication.

Check the recipient can reconstruct the statement

Acceptance means the recipient can recover the original expression and its associated note, while seeing which interpretation fields remain unstated. The worksheet is a transcription aid, not a measurement-uncertainty evaluation or a certification of the reported result.

If uncertainty-bearing reports are your recurring workload, start with the worked material example and discuss the exact notation your reviewer needs preserved. A wider pilot requires an agreed scope and fee. The invoice trial does not establish support for scientific uncertainty fields.