Varedelen skal være tilstrækkeligt stor eller vigtig, for at den kan anses for at tilføre varens dens mest væsentlige egenskab (jf. i denne retning dom af 5.10.1994, sag C-151/93, Voogd Vleesimport en -export, Sml.
Case C-70/06: Commission of the European Communities v Portuguese Republic (Failure of a Member State to fulfil obligations — Judgment of the Court establishing the failure of a Member State to fulfil its obligations — Non-compliance — Financial penalty) . . . . . . . . . . . . . . . .