BS EN 60268-7:2011

1 Scope
2 Normative references
3 Terms and definitions
4 Classification, designation and coding
5 Marking of terminals, controls and polarity
6 User instructions
7 Conditions for specifications and measurements
8 Characteristics to be specified and their methods
  of measurement
9 Classification of characteristics
Annex A (normative) - Pinna simulators for measurements
        of headphones and earphones
Annex B (normative) - Specification and conditions of use
        of a microphone for use inside the ear canal
Annex C (informative) - Practical details of free-field
        comparison conditions
Annex D (informative) - Practical details of diffuse-field
        comparison conditions
Annex E (informative) - Practical details of the subjective
        comparison and ear canal sound pressure
        level conditions
Bibliography
Annex ZA (normative) - Normative references to international
         publications with their corresponding European
         publications

Describes the characteristics which should be included by the manufacturer in specifications, and relevant methods of measurement. Comprises a classification of the different types of earphone, mainly characterized by the way in which the transducer is coupled acoustically to the ear, and a classification code which may also be used for marking.

This part of IEC 60268, is applicable to headphones, headsets, earphones and earsets, intended to be used on, or in, the human ear. It also applies to equipment, such as pre-amplifiers, passive networks and power supplies which form an integral part of the headphone system. It does not deal with: safety, for which reference should be made to IEC 60065 or another appropriate standard; the characteristics of microphones of headsets, for which reference should be made to IEC 60268-4; earphones and other devices for hearing aids, for which reference should be made to IEC 60118-0; ones for audiometry; headphones and other devices which form part of an active ear-defender system, although some of its provisions may be applicable. This standard specifies the characteristics which should be included by the manufacturer in specifications, and relevant methods of measurement. It includes a classification of the different types of earphone, mainly characterized by the way in which the transducer is coupled acoustically to the ear, and a classification code which may also be used for marking.