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 TB 55-1900-207-24
CHAPTER 1. INTRODUCTION
SECTION I. GENERAL
1-1. Purpose. This bulletin provides information for maintaining the cooling water systems of the marine diesel engines
installed in all US Army watercraft. Specifically, it provides guidance in the chemical treatment of cooling water and
cooling water systems to prevent corrosion and scaling of metal heat transfer surfaces.
1-2. Scope. This bulletin applies to all US Army organizations, installations, activities, National Guard Units, and US
Army Reserve components worldwide who are involved in the maintenance of US Army watercraft.
Table 1-1. Materials and Test Equipment
NOMENCLATURE
NSN
QTY
REFERENCE
Anodes, Corrosion Preventive
See Technical
As Required
Manual
Antifreeze, Arctic-Type
55-GAL DR
MIL-A-11755
*Antifreeze, Ethylene
1-GAL
MIL-A-46153
Glycol, Inhibited, Heavy
5-GAL
MIL-A-46153
Duty, Single Package
55-GAL DR
MIL-A-46153
Antifreeze Extender Additive
QUART
Cleaning Compound with
Conditioner and Inhibitor
for Engine Cooling Systems
6850-00-598-7328
KIT
MIL-C-10597
Sodium Chromate, Anhydrous
Technical
1 LB CAN
O-S-588
Sodium Tetraphosphate
Technical
100 LB DR
O-S-635
Test Kit, Chromate
Each
No Spec
Test Kit, Test Strips and Color
KIT
CID A-A-5146
Chart, Antifreeze, Freeze Point
(one container with 50 test strips)
and Corrosion
Tester, Antifreeze Solution
66300-247-2968
Each
No Spec
*Note: The single package antifreeze, ethylene glycol, will not require the addition of corrosion inhibitor to the antifreeze
solution.
1-1
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