Bilateral comparison of the national sound pressure measurement standards of Germany and Bulgaria based on LS2P microphones
The proposed bilateral comparison is based on the measurement of pressure sensitivity of the two LS2P microphones Brüel & Kjaer type 4180 by using a pressure calibration method described in IEC 61094-2. The measurements with both national standards should be performed at the nominal preferred octave frequencies from 31,5 Hz to 1 kHz and at the nominal preferred 1/3 rd –octave frequencies from 1.25 kHz to 25 kHz.
The results will be helpful for evaluation of the degree of equivalence of both national standards.
We propose to combine the measurement with information exchange concerning both national standards
Final Report 2006-10-16
The comparison has been completed and the results can be downloaded here>>.