Hazards.

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

should be moved to refrigerated storage immediately

lower. A constant temperature will be maintained.

upon receipt at all points of destination.

These

Regardless of how photosensitized materiels are

materiels will never be permitted to stand on docks,

packaged, temperatures should be controlled in the

loading platforms, loading ramps, etc. The materiel

storage areas.

should be moved by refrigerated carriers and unloaded

d. Refrigeration. Refrigerated space always should

directly into refrigerated storage. In other words, all

be utilized for proper storage of photosensitized

photosensitized materiels should be maintained under

materiels. The required condition within the refrigerated

optimum temperature and RH condition from time of

space will be a maximum temperature of 50 . and

shipment from the manufacturer's plant until placed in

constant RH within the range of 30 to 60 percent.

use by the using activity to assure preservation in the

Leakage of moist air from the outside should be reduced

best condition for the longest period of time.

by using an air lock at the door. If the RH cannot be

held as required, the sensitized materiel should be

(3) Turnover. The objective should be to

placed in vaportight containers inside the refrigerators.

have as rapid a turnover as is economically possible

and to use photosensitized materials before the

e. Hazards.

expiration date. All packages of the photosensitized

(1) Harmful gases. Sensitized materiels will

materials are stamped by the manufacturer with an

be protected against harmful gases. High concentration

expiration date (month and year). This date gives the

formaldehyde,

hydrogen

sulfide,

ammonia,

life expectancy of the sensitized materials under normal

illuminating gas, mercury vapor, industrial gases,

nonrefrigerated storage conditions.

exhaust from engines, vapors of solvents, cleaners, and

Improper storage conditions can render these materials

turpentine can damage photographic emulsions.

useless long before the expiration date is reached.

(2) X-rays, radioactive, and atomic fission

Photosensitized material will be issued according to the

radiation. When storage of packaged photosensitized

"Expiration Date" shown on the package. That is to say,

materiels near X-ray machines, radar, radioactive, or

the package with earliest expiration date will be issued

atomic fission radiation cannot be avoided, the materiel

first. Sensitized material stored under the optimum

will be placed in facilities shielded with an adequate

conditions specified herein will be issued for the

thickness of lead or other suitable barriers.

following period after the stamped expiration date:

f. Operations.

(1) Storage.

Immediately upon receipt,

Materials

Domestic

Overseas

photosensitized materiel will be stored under specified

Black and white

12 months

6 months

Graded paper

12 months

6 months

optimum conditions. These optimum conditions will be

Variable contrast paper

12 months

6 months

utilized at storage or holding points within the limits of

Color, camouflage detection, and

6 months

0 months

resources available.

Deviation from the optimum

infrared film

storage conditions for storage of photosensitized

Polaroid-type materiel

No extension

materiels is authorized whenever prescribed storage

facilities (refrigerated) are unavailable and the

Photosensitized materials will be tested in accordance

expenditure of resources to modify existing or construct

with the procedures and schedule as set forth in

new facilities for such purpose cannot be economically

service/agency Quality Control Standards. Materiels

justified. Photosensitized materiel will be placed on

which have not been used within this time period or are

shelves, dunnage, or pallets allowing sufficient space

suspected of damage in storage or handling will not be

between packages for adequate circulation of air.

discarded without being tested. Often only partial

Refrigerators utilized for photosensitized materiel will

impairment of speed and contrast will have taken place

not be used for the storage of food or water in any form.

and the materiel will still serve adequately for training or

Likewise, these materiels regardless of level of

noncritical use.

preservation and packaging will not be stored in damp

g. Storage of photographic chemicals.

basements, on damp ground, near escaping steam,

(1) The optimum storage conditions for all

steam pipes, boiler rooms, windows, on top floors of

photographic chemicals are at temperatures between 70

uninsulated buildings, or near other sources of heat.

. and 75 . and at an RH between 20 and 40

Each lot of materiels will be stored according to the

percent.

expiration date placed on the package by the

manufacturer.

(2) Handling.

Photosensitized materiels

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