The closeness of agreement among repeated measurements of the same quantity under the same stated method, observer, instrument, location, and short-term conditions.
GlassRenu · Educational illustration
Meaning and boundaries
Repeatability does not prove accuracy, agreement between technicians, or validity of the measurement method.
Why it matters in glass restoration
A repeatable field method is necessary for credible before-and-after depth, thickness, temperature, and distortion records.
Related terms
References
- National Institute of Standards and Technology — NIST TN 1297: Guidelines for Evaluating and Expressing Measurement Uncertainty
Publisher’s original source - National Institute of Standards and Technology — NIST TN 1297 Appendix D1: Terminology
Publisher’s original source - NIST/SEMATECH — Engineering Statistics Handbook: Measurement Process Characterization
Publisher’s original source