IS 10781:1984-Specification for Reference Coupler for the Measurement of Hearing Aids Using Earphones Coupled to The Ear by Means of Ear Inserts
IS 10781:1984-Specification for Reference Coupler for the Measurement of Hearing Aids Using Earphones Coupled to The Ear by Means of Ear Inserts
- New Delhi : Bureau of Indian Standards (BIS), 1984.
- 7 p.
Hearing aids
Hearing aids