Procedure and Results of a Systematic Comparative Round Robin Estimation of the Uncertainties of Emission Measurements
in Germany and Switzerland during the summer and fall 1998
During summer and fall 1998, 75 sample takers and 20 employees of laboratories of 26 institutes measuring emissions in Germany and Switzerland estimate the uncertainty of measuring results of 5 selected VDI-standard emission measuring methods. The applied method of systematic comparative estimation showed that the estimated total uncertainties UT of the investigated measuring methods range between 12% and 21%. The results of the round robin estimation for one of the methods (dust measuring 2066 Part 7) with UT = 15.4% are equal to those of the system for simulation of emissions (HLfU Kassel) with 15.5%. This confirms the expectation of the initiators of the project that the systematic comparative estimation is useful for the characterization of test methods and hence for the validation of methods.