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

Select target paragraph3