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Appendix to Part 62
Table 62-1--Reference Duration
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dBA T (hours)
------------------------------------------------------------------------
80........................................................ 32.0
85........................................................ 16.0
86........................................................ 13.9
87........................................................ 12.1
88........................................................ 10.6
89........................................................ 9.2
90........................................................ 8.0
91........................................................ 7.0
92........................................................ 6.1
93........................................................ 5.3
94........................................................ 4.6
95........................................................ 4.0
96........................................................ 3.5
97........................................................ 3.0
98........................................................ 2.6
99........................................................ 2.3
100....................................................... 2.0
101....................................................... 1.7
102....................................................... 1.5
103....................................................... 1.3
104....................................................... 1.1
105....................................................... 1.0
106....................................................... 0.87
107....................................................... 0.76
108....................................................... 0.66
109....................................................... 0.57
110....................................................... 0.50
111....................................................... 0.44
112....................................................... 0.38
113....................................................... 0.33
114....................................................... 0.29
115....................................................... 0.25
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At no time shall any excursion exceed 115 dBA. For any value, the
reference duration (T) in hours is computed by: T = 8/2(L-90)/5 where
L is the measured A-weighted, slow-response sound pressure level.
Table 62-2--``Dose''TWA 8 Equivalent
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TWA\8\
Dose (percent)
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25........................................................... 80
29........................................................... 81
33........................................................... 82
38........................................................... 83
44........................................................... 84
50........................................................... 85
57........................................................... 86
66........................................................... 87
76........................................................... 88
87........................................................... 89
100.......................................................... 90
115.......................................................... 91
132.......................................................... 92
152.......................................................... 93
174.......................................................... 94
200.......................................................... 95
230.......................................................... 96
264.......................................................... 97
303.......................................................... 98
350.......................................................... 99
400.......................................................... 100
460.......................................................... 101
530.......................................................... 102
610.......................................................... 103
700.......................................................... 104
800.......................................................... 105
920.......................................................... 106
1056......................................................... 107
1213......................................................... 108
1393......................................................... 109
1600......................................................... 110
1838......................................................... 111
2111......................................................... 112
2425......................................................... 113
2786......................................................... 114
3200......................................................... 115
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Interpolate between the values found in this Table, or extend the Table,
by using the formula: TWA8 = 16.61 log10 (D/100) + 90.
Table 62-3--Age Correction Value in Decibels for Males (Selected
Frequencies)
------------------------------------------------------------------------
kHz
Age (years) -----------------------
2 3 4
------------------------------------------------------------------------
20 or less...................................... 3 4 5
21.............................................. 3 4 5
22.............................................. 3 4 5
23.............................................. 3 4 6
24.............................................. 3 5 6
25.............................................. 3 5 7
26.............................................. 4 5 7
27.............................................. 4 6 7
28.............................................. 4 6 8
29.............................................. 4 6 8
30.............................................. 4 6 9
31.............................................. 4 7 9
32.............................................. 5 7 10
33.............................................. 5 7 10
34.............................................. 5 8 11
35.............................................. 5 8 11
36.............................................. 5 9 12
37.............................................. 6 9 12
38.............................................. 6 9 13
39.............................................. 6 10 14
40.............................................. 6 10 14
41.............................................. 6 10 14
42.............................................. 7 11 16
43.............................................. 7 12 16
44.............................................. 7 12 17
45.............................................. 7 13 18
46.............................................. 8 13 19
47.............................................. 8 14 19
48.............................................. 8 14 20
49.............................................. 9 15 21
50.............................................. 9 16 22
51.............................................. 9 16 23
52.............................................. 10 17 24
53.............................................. 10 18 25
54.............................................. 10 18 26
55.............................................. 11 19 27
56.............................................. 11 20 28
57.............................................. 11 21 29
58.............................................. 12 22 31
59.............................................. 12 22 32
60 or more...................................... 13 23 33
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Table 62-4--Age Correction Value in Decibels for Females (Selected
Frequencies)
------------------------------------------------------------------------
kHz
Age (years) -----------------------
2 3 4
------------------------------------------------------------------------
20 or less...................................... 4 3 3
21.............................................. 4 4 3
22.............................................. 4 4 4
23.............................................. 5 4 4
24.............................................. 5 4 4
25.............................................. 5 4 4
26.............................................. 5 5 4
27.............................................. 5 5 5
28.............................................. 5 5 5
29.............................................. 5 5 5
30.............................................. 6 5 5
31.............................................. 6 6 5
32.............................................. 6 6 6
33.............................................. 6 6 6
34.............................................. 6 6 6
35.............................................. 6 7 7
36.............................................. 7 7 7
37.............................................. 7 7 7
38.............................................. 7 7 7
39.............................................. 7 8 8
40.............................................. 7 8 8
41.............................................. 8 8 8
42.............................................. 8 9 9
43.............................................. 8 9 9
44.............................................. 8 9 9
45.............................................. 8 10 10
46.............................................. 9 10 10
47.............................................. 9 10 11
48.............................................. 9 11 11
49.............................................. 9 11 11
50.............................................. 10 11 12
51.............................................. 10 11 12
52.............................................. 10 12 13
53.............................................. 10 13 13
54.............................................. 11 13 14
55.............................................. 11 14 14
56.............................................. 11 14 15
57.............................................. 11 15 15
58.............................................. 12 15 16
59.............................................. 12 16 16
60 or more...................................... 12 16 17
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