International Standard Iso 14253 1.pdf Page
ISO 14253-1 described rules: guard bands, decision rules, acceptance criteria, and how to report when measurement uncertainty must be considered. Under Rule 1, you could accept without further action if the measured value plus its uncertainty stayed well inside the tolerance. Rule 2 told you to reject if even subtracting uncertainty placed it beyond the limit. And then there was the grey band—when uncertainty overlapped the limit—and the standard required that you apply a well-documented procedure or a tighter measurement to resolve the ambiguity.
Measurement uncertainty is a critical aspect of the standard. It is essential to evaluate the uncertainty of measurements to ensure that the decision rules are applied correctly. INTERNATIONAL STANDARD ISO 14253 1.pdf
To claim a part is bad (nonconforming), the measured value must be outside the limits by a margin equal to the uncertainty. iTeh Standards Key Terms and Definitions Decision Rules: ISO 14253-1 described rules: guard bands, decision rules,
The standard outlines decision rules for proving conformity or nonconformity with specifications. These rules are based on the measurement uncertainty and the specified tolerance limits. And then there was the grey band—when uncertainty
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