Check containment of the full intervalLower margin equals PCB minimum minus specified minimum; upper margin equals specified maximum minus PCB maximum. Measurement uncertainty and guard bands remain separate.Check containment of the full intervalIllustration does not set a connector toleranceConnector-approved intervalPCB complete tolerance intervalBoth PCB limits must lie inside the approved window.A matching nominal value or partial overlap is not enough.³Ô¹Ïtv · Engineering illustration · Conceptual, not to scale