Conformance Decision Making Under Measurement Uncertainty
topic
ILAC G8 and ISO 14253 conformance decision rules define guard bands that account for measurement uncertainty when making pass-fail decisions against specification limits, shifting the acceptance zone inward by a fraction of expanded uncertainty to control the probability of false acceptance of non-conforming textile product or false rejection of conforming product.
Role
Provides the decision framework for using measurement uncertainty information in specification conformance judgments for textile materials, preventing the error of declaring a product conforming or non-conforming without accounting for the probability that measurement uncertainty places the true value on the opposite side of the specification limit.
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