NF C97-332/A1*NF EN 61094-2/A1:2022 Electroacoustics - Measurement microphones - Part 2 : primary method for pressure calibration of laboratory standard microphones by the reciprocity technique
2022NF C97-332/A1*NF EN 61094-2/A1:2022 Electroacoustics - Measurement microphones - Part 2 : primary method for pressure calibration of laboratory standard microphones by the reciprocity technique