TABLE 4.2 - Specific Gravity of Active Material Settling
on Decks of Ships Compartments
A.
Shots 2 and 4
Per Cent Total Beta Activity in Fraction
Specific Gravity Shot 2(@) shot 2(0) shot 2(¢)! shot 4(@)] shot 4(>)
———
< 1.50
9.7
1.50 ~ 1.98
42
1.98
24
-
2.30
8.9
19
56
67
49
9.4
5.5
7.3
13
44
70
42
2.30 - 2.45
4.5
9.4
2.2
0.9
2.1
245
-
2.58
1.2
9.3
1.2
14
1.5
2.58
-
2.77
Oh
1.1
0.3
0.7
0.7
2677
-
2.55
0.2
1.5
0.8
1.6
0.4
8.5
0.3
6.8
1.9
> 2.35
B.
18
Shot 5
Specific Gravity
£ 1,50
1.50 = 2.10
2.10 = 2.37
Per Cent Total Beta
Activity in Fraction(2)
9.2
52
28
2.37
-
2051
3.2
2051
-
2.52
1.5
2.62
-
2.20
2.0
2.30
-
2.85
0.7
>2.35
(a)
(b)
(c)
362
Unprotected Ventilation System, 670 cfm, YAG 40
Unprotected Ventilation System, 1000 cfm, YAG 39 (washdow)
Unprotected Ventilation System, 1000 cfm YAG 40
94