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Rounding reported values in a certificate dataset

Rounding should change presentation without silently changing the underlying recorded measurement. Keep source precision in the stored result and apply a documented display rule.

For research use only. Not for human or veterinary use.

When calculating a summary, avoid repeatedly rounding intermediate values. The output should state its precision without implying greater certainty than the source supports. A correction to transcription is a different action from a change in display format.

Reading checklist

Preserve the source value
Round at the declared presentation step
Distinguish corrections from formatting changes

Reference: Measurement uncertainty.

Sources and further reading

NIST: measurement uncertainty for reference materials

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