envelopeFunctionMeasurementUncertaintyBalancedMeanhttps://digilab.ptb.de/dkd/refType/vocab/skos/351en-USGerman Calibration Service (DKD)2025-12-01 14:37:21https://digilab.ptb.de/dkd/refType/vocab/Metrology Databasetext/html