BS 6310:1982

National foreword
Cooperating organizations
Specification
1 Scope
2 Object
3 Definitions
4 General requirements
5 Performance specifications
6 Performance tests
7 Coupling arrangements
8 Calibration
9 Atmospheric reference conditions
Tables
I Modulus of the acoustic transfer impedance and
    associated tolerances
II Sound pressure level relative to that at the
    reference frequency 500 Hz for the nominal effective
    volume (1.26 cm3), and associated tolerances
Figures
1 Coupling of an insert earphone to the occluded-ear
    simulator
2 Coupling of a behind-the-ear type of hearing aid to
    the occluded-ear simulator
3 Coupling for in-the-ear type of hearing aid (modular
    type) to the occluded-ear simulator
4 Coupling arrangement for an in-the-ear type of
    hearing aid (custom-made) to the occluded-ear
    simulator
5 Coupling arrangement for an insert earphone with an
    earmould to the occluded-ear simulator
6 Coupling arrangement for a real-ear insert to the
    occluded-ear simulator
A1 Example of one specific design of occluded-ear
    simulator

Specifies a simulator for the calibration of insert earphones in the frequency range 100 Hz to 10 000 Hz in terms of the sound pressure at the eardrum. Defines terms used, and gives performance specification and tests, coupling arrangements, calibration details and a specific example for the design of such a device.