Ревидиран
Specifies the general requirements for test equipment designed for use in measuring the real-ear acoustical characteristics of hearing aids and describes the terminology used.
The purpose of this International Standard is to ensure that measurements of real-ear acoustical characteristics of a hearing aid on a given human ear, performed with different test equipment which comply with this International Standard using methods described in ISO 12124, shall give substantially the same results.
ПОВУЧЕН
IEC 61669:2001 ED1
99.60
Повлачење ступило на снагу
4. 11. 2015.
ОБЈАВЉЕН
IEC 61669:2015 ED2