Section III. TANK STRAPPING AND CALIBRATION

TM 5-5430-209-12

(4) Remove caulking groove boards and seal the groove according to figure 10-3.

Figure 10-3. Caulking installed.

Section III. TANK STRAPPING AND CALIBRATION

10-7. General

braces, ladders, steam coils, etc.) and decreases the

capacity of the tank.

"Tank Strapping" is the term commonly applied to the

(2) External deadwood is any object that projects

method of taking and reporting the dimensions of a tank.

outside the tank shell that will increase the capacity of

The installation of a concrete cap over the original

the tank (pipe connections, manholes, cleanout

bottom of the tank proportionately reduces the capacity

openings, etc.).

of the tank and thereby creates the need for

b. Depth or Tank Height. The vertical distance

remeasurement or strapping. Detailed instructions for

from the top of the stave, shell, or top angle iron to the

gaging. measuring, and sampling are contained in TM

inside surface of the tank is defined as the tank height.

10-1101

(Petroleum

Handling

Equipment

and

c. Oil Height. The highest point to which the tank

Operation.)

10-8. Definitions

can be filled without overflowing is known as the oil

height. It may be the same as the tank height or it may

a. Deadwood.

be below the top due to connections, overflow lines or

(1) Internal deadwood is any object within the shell

vent lines.

of the tank that displaces fluids (columns.

10-5