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Sound in air

Working group 1.61


  • Realization and dissemination of the unit of sound pressure (Pa)
  • Traceability to National Standards: microphones, sound calibrators, ear simulators and mechanical couplers
  • Specific testing of hearing protectors, earphones, head and torso simulators, ear simulators, hearing aids, electronic hearing protectors, head sets, acoustical toys, etc.
  • Standardization work (ISO / IEC / DKE / NALS)
  • Assessment of DKD testing laboratories in the field of acoustics
  • Determination of reference data for human ear characteristics
  • Improvement of audiological measurement techniques

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