Section VII. Operations in CH Space

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

a. Basic regulation. The Joint Regulation AR 700-

15NAVSUPINST 4030.28A/AFR 71-6/MCO 4030.33A/

DSAR 4145.7 (Packaging of Material) provides uniform

criteria for use by all DOD Components in the selection

and prescription of packaging.

b. Detailed criteria. Specific instructions governing

basic techniques and details of cleaning, selecting and

applying of preservatives, packaging, and packing to

protect material against deterioration and damage are

prescribed in appropriate Government specifications,

standards, and in service/agency directives.

3-46. Stock Discrepancies.

Discrepant material found during COSIS, inventory, or

issue actions may be identified and controlled by use of

DD Form 857 (Stock Discrepancy (Notice)) (see fig 3-9).

Procedures for use of this three-part form will be

established by each service/ agency using the form.

Figure 3-9. DD Form 857 (Stock Discrepancy

(Notice))

Section VII. Operations in CH Space

3-47. General.

a. In a high humidity environment, conventional

Material

Percent RH

storage facilities do not afford adequate protection (to

certain types of supplies) against damage and

Metals .............................................

40-50

deterioration that can result from excessive humidity.

Plastics ...........................................

Below 70

This is particularly applicable where supplies are to

Paper ..............................................

40-55

remain in storage for extended periods. Items selected

Wood ..............................................

40-55

for CH protection will normally be those items afforded a

minimum degree of military protection, commercially

Textiles ...........................................

40-50

packed, or bare. To ensure that the capability of

Rubber............................................

45-60

material to perform its intended function will not be

Leather ...........................................

Below 70

impaired or that supplies will not become unfit for

Optics .............................................

Below 60

consumption as a result of exposure to excessive

humidity, methods have been developed to provide

3-48. Policy.

control of humidity within storage warehouses.

CH space will be considered premium space and will be

b. The control of humidity within storage structures

occupied at all times to the maximum practicable extent

is a method of protection-not a method of rejuvenation.

on a priority basis with those items to which CH affords

CH storage will not remove rust that is already present,

the greatest degree of protection and benefit.

nor will it otherwise restore material that has

Procedures governing the control and usage of exterior

deteriorated prior to storage. Material placed in this type

doors in CH buildings will be developed locally to ensure

of storage in a condition other than clean may continue

that the operation of dehumidification machines is kept

to deteriorate, particularly when contamination is of a

to a minimum.

corrosive nature.

3-49. Responsibilities.

c. The recommended RH levels for broad

a. The following responsibilities will be assigned to

categories of material are as follows:

a proper organizational element:

(1) Operate, calibrate, and maintain humidity

reduction equipment and all meters, recording devices,

and other similar equipment related thereto.

(2) Accumulate, summarize, and distribute

developed "control" data to the extent required to effect

3-35