unit uIBANUtils; interface uses SysUtils, Classes, IBAN; function EsCodigoIBANValido(AIBAN : string): boolean; implementation function EsCodigoIBANValido(AIBAN : string): boolean; var auxIBAN : TIBAN; begin auxIBAN.Create; try auxIBAN.IBAN := AIBAN; Result := auxIBAN.Valid; finally FreeAndNil(auxIBAN); end; end; end.