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Test Kit for Captured Fuel
TM 5 6630 217-10
If the density indicator remains suspended above the GO/NOGO line, the
second test is rated "GO" or acceptable and the operator proceeds with the
testing.
The third test is for viscosity and is a comparative measurement. Three parallel
viscosity measuring tubes are utilized wherein a column of liquid falls slowly
down the length of each tube. The rate of fall is proportional to the viscosity of
the fluid in the tube. The three tubes in their containers are numbered 1, 2 & 3
from left to right facing the operator. Containers 1 & 3 have fuel samples of
known viscosity sealed in with an inert atmosphere. To accomplish this test,
remove instruction card, place test kit on back (card holder down) on level
surface. Allow tubes in chambers 1, 2, & 3 to fill and lose bubbles. Raise test
kit to upright position (caps down) and observe fall of fluid in tubes.
The three columns of fluid in the tubes will instantly begin to fall at rates
proportionate to the viscosity of the fluids. If the columns fall in order 1, 2, 3
this indicates that the viscosity of the fuel being tested (column #2) falls
between the viscosities of the sample fluids In columns 1 and 3, and is therefore
acceptable or 'GO.. If fluids fall in any order except 1, 2, 3; reject fuel.
The "fuel of opportunity" is considered suitable for diesel or gas turbine engines
only if all three tests have given "GO" readings.
Visual “GO”. - Specific Gravity “GO”. - Viscosity “GO”.
Cleaning
After fuel testing procedures are completed, remove remaining fuel residue from
transit case with a clean, dry, lint tree cloth before storing test kit.
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