IEC 60268-7 Revised
IEC 60268-7:1984
Sound system equipment. Part 7: Headphones and headsets.
Applies to headphones and headsets intended to be used on the human ear. Standardizes the designation and description of headphones, and lists characteristics to be specified, with the relevant methods of measurement.
CHFÂ 115.-
A more recent version of this publication exists:
IEC 60268-7:2010+AMD1:2020 CSV