Table 1—Table of acceptable audiometric hearing level.

Acceptable Audiometric Hearing Level
(Present American Standard)
For Appointment
 
 
250
500
1000
2000
3000
4000
6000
8000
 
 
256
512
1024
2048
2896
4096
6144
8192
a.
Both
ears. . . .
(1)
Average of six readings in these speech frequencies not greater than 20 decibels with no level greater than 25 decibels. (divide by six)
(2)
50
(2)
(1)
 
or
 
b.
Better
ear. . . .
(1)
15
15
15
(2)
30
(2)
(1)
 
Worse
ear. . . .
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1) No requirement
(2) Not yet
standardized
 
"Better ear" is interpreted to mean the ear with better hearing at the frequency level being tested.
Medical history report to contain ASA readings; consult table below:
CONVERSION TABLE
 
ASA
 
 
 
ISO
 
Hz
 
Db
 
Hz
 
Db
500
 
15
 
500
 
30
1000
 
15
 
1000
 
25
2000
 
15
 
2000
 
25
4000
 
30
 
4000
 
35
[Statutory Authority: RCW 41.50.050(6) and 41.50.090. WSR 78-03-023 (Order IV), § 415-104-560, filed 2/15/78. Formerly WAC 297-50-070.]
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