Radioactive Material.

TM 38-400/NAVSUP PUB 572/AFMAN 23-210 MCO 4450.14/DLAM 4145.12

bolt heads, or other protrusions that could cause

(a) The same precautions observed

damage.

when loading pipe should also be observed while

unloading.

(2) The first layer should allow couplings and

belled ends to overhang the bed with each successive

(b) PVC pipe may be unloaded from

layer overhanging the layer below. Alternately, bundles

trucks by sliding over other plastic pipes, but care

may be constructed in any manner that does not stress

should be taken not to slide pipe over rough or abrasive

the bells and couplings.

surfaces.

(3) Short body trucks may be used if fitted

(c) PVC pipe should not be dropped or

with racks that properly support the pipe in a horizontal

thrown off a truck nor should the ends of the pipe be

position.

allowed to dig into the ground after sliding off a truck.

c. Storage.

5-42. Radioactive Material.

(1) Pipe stored outside for long periods of

Many commodities employed by the Federal services

time should be covered to protect it from prolonged

incorporate a radioisotope (ionizing radiation) as a

exposure to direct or reflected sunlight. The cover may

functional component. Since ionizing radiation presents

be canvas or an opaque material as long as adequate

a significant potential hazard, rigid controls are imposed

air circulation is provided under the cover to avoid

on handling and storage of radioactive material by Title

overheating.

10, Code of Federal Regulations. These controls are

(2) Pipe stored on uneven surfaces may, in

stated in a general way in DLAM 4145.8/AR 700-64/

time, assume the contour of this uneven surface.

NAVSUPINST 4000.34/AFM 67-8/MCO P4400.105,

This is accelerated by the weight of the

Radioactive Commodities in the DOD Supply System

stack and/ or by temperature above 100 .

and in OSHA 1910.96. For further information, see TM

(3) PVC pipe at the bottom of a stack may

38-410/DLAM 4145.11/ NAVSUP PUB 573/AFR 69-

become out-of-round due to the weight of the material

XX/MCO 4450.XX, Storage and Handling of Hazardous

above. At moderate temperatures, this corrects itself

Materials.

soon after the load is removed; at low temperatures,

several hours may be required for recovery.

5-43. Magnetic Tapes, Disks, Diskettes, and

CAUTION

Cassettes.

Long times or heavy loads may

Extreme or repeated temperature fluctuations in the

cause permanent out-of-roundness.

storage environment may cause a deterioration in the

oxide uniformity of magnetic mass memory media

materials. This is especially critical in magnetic tapes

(4) Bundles of PVC pipe should have the

and disks designed for use with automated data

belied ends or couplings alternated at each end of the

processing equipment (ADPE); however, other sound or

bundle and extended beyond the other pipe ends.

video tapes and cassettes are similarly sensitive to

Alternately, bundles may be constructed in any manner

changes in the storage temperature. These items must

that does not stress the bells and couplings.

be afforded long-term storage in a facility with a

(5) Store single lengths of PVC pipe on a flat

controlled temperature between 50 to 125 degrees

surface so as to support the barrel evenly. If the pipe is

Fahrenheit (F) (10 to 50 degrees centigrade (C)).

to be placed in racks, support the pipe at least every 3

Magnetic tapes, disks, and cassettes shall be moved to

feet. Contact areas should be padded to prevent

a controlled temperature storage environment

abrasive damage.

immediately upon receipt.

Materials will not be

(6) Keep PVC pipe away from hot objects,

permitted to sit for extended periods on docks, loading

pipelines, heaters, etc.

platforms, or ramps exposed to the elements. This

d. Loading Transfer Trucks.

action will maximize the shelf-life of the material and

(1) Use trucks with long bodies making

prevent the premature chemical deterioration of the

certain the truck bed is smooth, without cross-strips,

items.

5-90