Advances in Heat Transfer Engineering

ISBN Print: 9986-49278-5

THE LITHUANIAN AIR VOLUME AND FLOW RATE STANDARDS

DOI: 10.1615/BHT4.950
pages 821-828

Abstrakt

The standard of air volume and flow rate units in the range of 0.005−6500 m3/h has been developed. The standard consist of three parts: bell type facility, sonic nozzles facility and reference gas meters facility. These parts differ by methods used, measurement ranges and measurement uncertainties. The standard is traceable to international and national standards. The standard design and main characteristics are presented and the results of comparison with standards of the leading European Metrological Institutes are presented too.