Comparison of primary standards for liqud nano flow rates

An intercomparison has been organized with the purpose to determine the degree of equivalence of several newly developed primary standards for liquid flow rates from 3 mg/h up to 200 mg/h (equivalent with 50 nl/min to 3.3 μl/min). This intercomparison is complementary to EURAMET project 1291/ EURAMET.M.FF.S7 to cover even lower flow rates (project 1291 covers flow rates from 0.12 g/h up to 200 g/h, equivalent to 2 μl/min to 3.3 ml/min). This report discusses the protocol (measurement procedures) as well as the results following the intercomparison.