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MIL-HDBK-419A
Table 8-7 (Continued)
Calculated Values of Shielding Effectiveness
Thickness
Source*
SE=A+R+C
R
C
(mils)
(Hz)
(dB)
(dB)
(dB)
Iron
60
1
L
-0.9
+0.95
0.38
0.33
60
L
10
-0.9
+0.78
3.30
3.18
60
300
L
-0.9
0.00
100.00
99.10
L
1
k
10
14.66
13.70
+0.06
0.9
10
k
L
10
8.0
0.00
43.50
51.50
D
10
k
10
174.0
0.00
43.50
217.50
10
P
10
k
99.5
43.50
0.00
143.00
30
10
k
L
8.0
0.00
130.50
138.50
10
150 k
L
19.0
0.00
160.00
179.00
10
150 k
D
139.0
169.00
0.00
308.00
10
150 k
P
79.0
0.00
169.00
248.00
10
1
M
L
28.0
363.00
0.00
391.00
D
10
1
M
116.0
0.00
363.00
479.00
10
1
M
P
72.0
363.00
0.00
435.00
10
15
M
L
42.0
0.00
1060.00
1102.00
10
15
M
D
0.00
83.0
1060.00
1143.00
10
15
M
P
63.0
1060.00
0.00
1123.00
100 M
L
10
56.0
0.00
1370.00
1426.00
10
100 M
D
64.0
0.00
1370.00
1434.00
10
100 M
P
60.0
1370.00
0.00
1430.00
8-24








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