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Are Repeatability, Reproducibility and Accuracy the Same?

2026-10-02English

No. In simple terms, repeatability concerns agreement under the same conditions, reproducibility agreement after conditions change, and accuracy closeness to a reference.

Why

Closely grouped results can still be offset from the reference. Agreement after a condition change is another assessment.[1][2]

ICx documents list the metrics separately. The smallest number cannot replace the others, and manufacturer metrics do not supply undocumented local statistics.

What to confirm

Retain manufacturer terms, samples or standards, conditions and units. This is a plain-language explanation, not a substitute for formal metrological or statistical standards; use confirmed definitions and calculations in method records.

References

  • [1] Lovibond ICx Operator Instruction Manual, PDF page(s) 41 (file page order). View reference resource
  • [2] Lovibond ICx High-Precision Colour Measurement of Clear Liquids, PDF page(s) 3 (file page order). View reference resource

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