Superseded Standard amendment
Historical

UNE-EN ISO 5167-1/A1:1999

MEASUREMENT OF FLUID FLOW BY MEANS OF PRESSURE DIFFERENTIAL DEVICES. PART 1: ORIFICE PLATES, NOZZLES AND VENTURI TUBES INSERTED IN CIRCULAR CROSS-SECTION CONDUITS RUNNING FULL. (ISO 5167-1:1995/AM1:1998).