Section IV. STORAGE OF INDUSTRIAL PLANT EQUIPMENT IN NONCONTROLLED HUMIDITY STORAGE ENVIRONMENTS

TM 38-260

(1)

On bright, sunny days when the barometric pressure is holding steady, doors and windows may be opened.

(2) When the barometric pressure is falling rapidly, or evidence of a weather front (cloudy or stormy weather

conditions) is moving in, the storage buildings should be closed tightly.

(3) Under all conditions, the buildings should be closed 3 hours before sundown and never opened for

ventilation before 0900.

c. There are some geographic areas in the United States where condensation is unlikely to occur during certain

months of the year. During this time, the humidistat for controlling the environment may be shut off. The fuel required to

protect equipment from condensation can be saved that month. For example, in Birmingham, Alabama, the

environmental system would be controlled by the humidistat only during the months of July, August, and September,

while in Hartford, Connecticut, the humidistat would have to be left on throughout the year.

NOTE

WHEN MOVING IPE FROM ONE CLIMATE TO ANOTHER, THE UNITED

STATES WEATHER BUREAU SHOULD BE CONSULTED FOR THE

HUMIDITY AND CONDENSATION INDEXES FOR THAT PARTICULAR AREA.

Section IV. STORAGE OF INDUSTRIAL PLANT EQUIPMENT IN NONCONTROLLED

HUMIDITY STORAGE ENVIRONMENTS

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General

a. Noncontrolled humidity storage includes all storage building/facility areas that are not equipped to maintain a

controlled relative humidity level. Those areas having the most adverse effects on unprotected equipment are unheated

buildings, sheds, shelters, and open (outdoor) storage areas. The term "noncontrolled storage" referenced in paragraph

5-5b is used in its generic form in this paragraph.

b. Noncontrolled humidity storage. Noncontrolled humidity storage areas include warehouses and open areas which

have been paved to permit effective material handling equipment operation and open areas which have not been

improved but can be used for storage purposes. Equipment not stored in enclosed buildings shall be protected by tarps,

cocoons, or other appropriate means.

c. Storage areas. IPE may be stored in adjacent storage areas, in-place areas on-site, or at storage-maintenance

facilities.

d. Adjacent storage. When equipment is to be placed in adjacent storage, preparation should be in accordance with

the level specified.

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