AI‑Verified Audit – Temperature Uncertainty Calculator

This uncertainty calculator has been AI‑reviewed and tested against the GUM framework to verify accuracy and methodological correctness.

While reasonable care has been taken, users remain responsible for ensuring results are appropriate to their application and quality system. No responsibility is accepted for how results are used.

Objective

This review assesses the Temperature Uncertainty Calculator on calibration.info, which enables users to combine uncertainty components in line with the Guide to the Expression of Uncertainty in Measurement (GUM).

Methodology Standards

Standard uncertainty conversion: Correct divisors used for normal (k=2), rectangular (√3), and triangular (√6) distributions.
Combination method: Root‑sum‑of‑squares (RSS) approach verified against GUM section 5.
Coverage factor: Expanded uncertainty calculated with k=2 for 95% confidence.

Assessment Summary

Multiple test cases were constructed using known values and standard formulas. The calculator’s output consistently matched expected results across all distributions. Components can be added, edited, or removed, and updates are reflected in real time.

Verification Examples

Case Description	Expected Result	Calculator Output	Compliance
Two sources (0.05 k=2, 0.02 rectangular)	Expanded uncertainty ≈ 0.060	0.0600	Correct
Adding triangular component (0.06)	Expanded uncertainty ≈ 0.085	0.0854	Correct
Switching to k=1 for one source	Expanded uncertainty ≈ 0.0806	0.0806	Correct

Limitations & User Responsibility

User input is stored locally; no data is transmitted or saved remotely.
Distribution type must be correctly assigned by the user for each source.

Conclusion: The Temperature Uncertainty Calculator provides reliable GUM‑based results for standard and expanded uncertainty. It is suitable as a support tool for laboratories and technicians, with final responsibility resting with the user.