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Reading a purity summary with few records

A summary based on a few numeric reports describes those observations. It gives limited information about the broader variation of future or unobserved material.

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

Show the number of records beside any range or mean. A chart should not make two observations look like a continuous history. Keep the underlying rows visible so the reader can see exactly what the summary contains.

Reading checklist

Display sample count with the statistic
Avoid implying continuity between sparse records
Keep source rows accessible

Reference: Measurement uncertainty.

Sources and further reading

NIST: measurement uncertainty for reference materials

External references explain terminology and methods. They do not certify Eon products or establish suitability for human or veterinary use.