ANSI KOSS R80
Coupler: IEC 60318-1 1998
HF Tone Audiometer
Tone
IA - value
Frequency
RETSPL MaxHL
8000
18.5
100
9000
20.5
90
10000
24.5
95
11200
22.0
95
12500
27.0
80
14000
37.0
75
16000
52.5
60
18000
70.0
40
20000
84.0
15
White Noise
Narrow Band Noise
ISO 389-4 1994
RETSPL
MaxHL
23.5
90
25.5
85
29.5
80
27.0
80
32.0
75
42.0
60
57.5
45
75.0
20
89.0
10
0
110
IEC KOSS R80
Coupler: IEC 60318-1 1998
HF Tone Audiometer
Tone
IA - value
Frequency
RETSPL MaxHL
8000
18.5
100
9000
20.5
90
10000
24.5
95
11200
22.0
95
12500
27.0
80
14000
37.0
75
16000
52.5
60
18000
70.0
40
20000
84.0
15
White Noise
Narrow Band Noise
ISO 389-4 1994
RETSPL
MaxHL
23.5
90
25.5
85
29.5
80
27.0
80
32.0
75
42.0
60
57.5
45
75.0
20
89.0
10
0
110