uncertainty of measurement

The  article  analyzes  the  results  of  bilateral  key  regional  comparison  COOMET.AUV.A-K.5  related  to  the calibration of  one-inch  laboratory  standard microphones  in  the  frequency  range  from 2 Hz  to 10 kHz. The national metrology institutes in the field of acoustics of: Ukraine (DP NDI “Systema”) and Poland (GUM) have been participated in this comparison.

The article analyzes the requirements for increasing the probability of conformity assessment of products. To increase the probability of measuring inspection, there have to be applied more precise measuring systems; performed multiple observations of the investigated quantity. An analysis was conducted for each of the ways.