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    IS 10781 : 1984     (Reaffirmed Year : 2016 )

    Reference Coupler for the Measurement of Hearing Aids Using Earphones Coupled to The Ear by Means of Ear Inserts

    Technical Committee : LTD 7

    Superseeded by : IS/IEC 60318-5 : 2006
    Status : withdrawn

    No. of Amendments : 0
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