Attach ground wire: place one end of the ground wire on the
assembly and the other end on grounded metal (such as to an automobile
bumper). See Figure 2.10 for example of assembly placement.
Flushing the Inlet Hose
If one or all test procedures are performed at the same time
(within the same hour), re-flushing the lines is not required. However, if
the system has not been flushed, do not use the PVC bottle to contain the sample,
but rather follow the procedure for flushing the inlet hose as described in Section
2.3.7. Refer to Figure 2.11. Allow sufficient quantity of fuel to flow through the
bypass tubing to flush entrained contaminants from the inlet valve, hose, and
three-way valve. Discard approximately two times the required test volume or
approximately 200 milliliters (7.0 ounces).
2.4.7 Taking a Sample
Hold the sampler upright and turn the three-way valve to the TEST
position (Figure 2.12).
Collect enough fuel to fill the PVC sample bottle - no more than 1
liter (1.0 quart).
When collection is completed, turn the three-way valve to the OFF
position (Figure 2.7) before turning off the system pump.
Retract the quick-release valve collar; remove the sampler nipple
from the valve and replace the protective cap and plug (Figure 2.13).
Carefully remove the PVC sample bottle from the sampler.
2.4.8 Determining the API Gravity and Temperature
Fill the clear plastic cylinder half-full with fuel--pour the fuel at an
angle to minimize air entrapment (Figure 2.17).
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