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Page Title:
Table 4-13. Measured ARFs and RFs from the Free-Fall Spill of Powders |
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|  DOE-HDBK-3010-94
4.0 Solids; Powders
Table 4-13. Measured ARFs and RFs from the Free-Fall Spill of Powders
(Tables A.1, A.3, B.1 and B.3 - Sutter, Johnston and Mishima December 1981)
Fall Height, m
Material
Source Mass, g
ARF
RF
3
TiO2
1000
1.5E-3
0.25
9.6E-4
0.40
UO2
2.3E-4
0.25
1.2E-3
0.49
500
4.0E-4
0.70
1.1E-3
0.38
TiO2
471.9
1.9E-3
0.34
460.0
9.0E-4
0.40
450.4
3.3E-3
0.62
431.1
2.0E-4
0.40
100
1.2E-3
0.31
9.9E-4
0.46
UO2
4.0E-5
0.91
4.0E-4
0.44
TiO2
25
7.0E-4
0.50
8.0E-5
0.50
1
TiO2
1000
5.0E-4
0.53
1.7E-5
0.40
UO2
6.0E-5
0.46
8.0E-5
0.50
500
4.0E-5
0.83
8.0E-5
0.52
TiO2
451
8.0E-5
0.42
441.1
8.0E-5
0.41
UO2
100
2.0E-5
0.93
7.0E-5
0.51
TiO2
25
1.0E-4
0.62
2.0E-4
0.58
measured for these conditions. The bounding ARF and RF values for the lesser spill height
are 5E-4 and 0.5. The median ARF and RF are 8E-5 and 0.5 with average values of 1E-4
and 0.6. The largest RF measured was 0.9 for the next to smallest ARF measured under
these conditions. The measured ARFs are consistent with the values measured in Plinke et
al. (1991) at approximately the same fall height.
The variation in the measured ARF values appears to be somewhat dependent on the level of
the values. For ARFs at 1E-3 to 1E-4, the values appear to reflect variability of a factor of
Page 4-80
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