1. Flow Measurement: Practical Guides for Measurement and Control;Spitzer,2001
2. ISO 649 1981 Laboratory Glassware—Density hydrometers for general purpose.
3. ISO 10790 1999 Measurement of fluid flow in closed conduits—Guidance to the selection, installation and use of Coriolis meters (mass flow, density and volume flow measurements).
4. ISO 6976 1983 Natural gas—Calculation for calorific value, density and relative density.
5. An improved greens pan acoustic viscometer;Wilhelm;Int. J. Thermophys.,2000