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 MIL-HDRK-419A
Table 8-7
Calculated Values of Shielding Effectiveness (8-2)
R
SE=A+R+C
Thickness
Source*
A
C
(mils)
(dB)
(dB)
(Hz)
(dB)
(dB)
Copper
0.23
L
22.4
-22.20
1
60
0.026
3.46
10
60
L
22.4
-19.20
0.260
30.12
+0.32
300
60
L
22.0
7.800
24.89
L
1.060
-10.37
10
lk
34.2
50.16
+2.62
10
10 k
L
44.2
3.340
212.73
10
10 k
D
212.0
-2.61
3.340
128.73
10 k
P
128.0
-2.61
3.340
10
54.80
L
44.2
+0.58
10 k
10.020
30
69.40
L
56.0
12.900
0.50
150 k
10
190.20
D
0.50
150 k
176.8
12.900
10
0.50
130.40
150 k
P
117.0
12.900
10
97.60
1M
L
64.2
33.400
0.00
10
185.40
1M
D
152.0
33.400
0.00
10
141.40
1M
P
108.0
0.00
10
33.400
205.00
15 M
L
76.0
129.00
0.00
10
245.00
10
15 M
D
116.0
0.00
129.00
0.00
225.00
10
15 M
P
96.0
129.00
418.00
10
100 M
L
84.0
334.00
0.00
426.00
10
100 M
D
0.00
92.0
334.00
10
422.00
P
88.0
334.00
0.00
100 M
8-23
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