Measurement uncertainty budget

Build a GUM uncertainty budget, then check conformity against your tolerance with the decision rule you choose. Validated against the worked examples of EA-4/02. Everything runs in your browser — no data leaves your computer.

1 Uncertainty budget

Measurand Unit of the result Coverage probability

Component	Evaluation	Input	c_i	ν_i	u(x_i)	\|c_i\|·u(x_i)	Share	Remove

2 Conformity assessment

Measured value (or error) Lower tolerance limit Upper tolerance limit Expanded uncertainty U Coverage factor k of U Decision rule

Your decision

The statements above follow from your inputs and the decision rule you chose. The conformity decision is yours.

Conforms Does not conform Limited use

Name Date Comment

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Metroloom Pro

For laboratories that build budgets every week.

Save budgets and reuse them across calibrations
Library of ready-made budget templates (balances, thermometers, pressure gauges, calipers, multimeters)
Monte Carlo method (GUM Supplement 1)
PDF reports with your laboratory's logo

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