 |
|||
|
|
|||
|
Page Title:
Separation Distance Requirements for Packages Containing Radioactive Materials in Passenger-Carrying Aircraft |
|
||
| ||||||||||
|
|
 TM 55-315
ing a hazard by shifting. Packages labeled Radioactive Yellow-II or Radioactive Yellow-III must be restrained to prevent
movement that would permit the package to shift closer than specified in paragraph 10-10 to a space occupied by a
person or an animal.
d. No person may place any package of radioactive materials labeled Radioactive Yellow-II or Radioactive Yellow-II
in an aircraft closer than the distances shown in table 10-1 to a space (or dividing partition between spaces) that may be
occupied by packages of undeveloped film (if so marked). If more than one package of radioactive materials is present,
the total transport index (sum of individual transport indexes) will be used as a basis for table 10-1.
10-10. Separation Distance Requirements for Packages Containing Radioactive Materials in Passenger-Carrying
Aircraft
a. General. No person may carry in a passenger-carrying aircraft any package labeled Radioactive Yellow-II or
Radioactive Yellow-III unless the package is placed in the aircraft according to the minimum separation distances
prescribed in b or c below.
b. Separation Distances.
(1) Except as provided in c below, the minimum separation distances prescribed in (2) below are determined by
measuring the shortest distance between the surfaces of the radioactive materials package and the surfaces bounding
the space occupied by passengers or animals. If more than one package of radioactive materials is placed in a
passenger-carrying aircraft, these packages shall be determined according to (2) below based on the total transport index
for the individual packages or overpacks.
(2) Table 10-1 prescribes minimum separation distances for carrying packages labeled Radioactive Yellow-II or
Radioactive Yellow-III in passenger-carrying aircraft.
c. Predesignated Areas. A package labeled Radioactive Yellow-II or Radioactive Yellow-III may be carried in a
passenger-carrying aircraft according to a system of predesignated areas established by the aircraft operator. Each
aircraft operator who elects to use a system of predesignated areas shall submit a detailed description of the proposed
system to the Director, Office of Hazardous Materials Transportation (OHMT) for approval before implementing the
system. A proposed system of predesignated areas is approved if the Director, OHMT determines that it is designed to
assure that:
(1) The packages can be placed in each predesignated area according to the minimum separation distances
prescribed in b(2) above, and
(2) The predesignated areas are separated from each other by minimum distance equal to at least four times the
distances required by b(l) and (2) above for the predesignated area containing packages with the largest sum of transport
indexes.
10-11. Special Requirements for Fissile Class III Radioactive Materials (49 CFR 175.703(c))
No person may carry aboard any aircraft any package of Fissile Class III radioactive material (para 2-17) except as
follows:
a. On a cargo-only aircraft that has been assigned for the sole use of the consignor for the specific shipment of
fissile radioactive material. Instructions for such sole use must be provided for in special arrangements between the
consignor and the carrier, with instructions to that effect issued with the shipping papers, or
b. On any aircraft that contains no other packages of radioactive labels described in chapter 5. Specific
arrangements must be effected between the shipper and carriers, with instructions to that effect issued with the shipping
papers, or
Table 10-1. Separation Distance Requirements
Minimum separation distance to nearest undeveloped film for various times of transit
Transport
Up to 2 hours
2 to 4 hours
4 to 8 hours
8 to 12 hours
Over 12 hours
index
Meters
Feet
Meters
Feet
Meters
Feet
Meters
Feet Meters
Feet
0.1 to 1.0
0.3
1
0.6
2
0.9
3
1.2
4
1.5
5
1.1 to 5.0
0.9
3
1.2
4
1.8
6
2.4
8
3.3
11
5.1 to 10.0
1.2
4
1.8
6
2.7
9
3.3
11
4.5
15
10.1 20.0
1.5
5
2.4
8
3.6
12
4.8
16
6.6
22
20.01 to 30.0
2.1
7
3.0
10
4.5
15
6.0
20
8.7
29
30.01 to 40.0
2.4
8
3.3
11
5.1
17
6.6
22
9.9
33
40.01 to 50.
2.7
9
3.6
12
5.7
19
7.2
24
10.8
36
NOTE: The distance in the table must be measured from the nearest point on the packages of radioactive
materials.
10-3
|
|
Privacy Statement - Press Release - Copyright Information. - Contact Us |
Click
here for thousands of PDF manuals