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TM 10-6630-240-12&P
TM 01461B-12&P/1
i.
When the sample has been taken turn the three-way valve (1) to the OFF position before turning off the system
pump. Remove the sample bottle from the sampler. Remove the sampler nipple from the quick release valve and
replace the protective cap and plug. (figure 2 - 29)
Figure 2-29
CAUTION
Some pumping systems (e.g. aircraft refuelers) develop a vacuum when closed which can
cause backflow and rupture the monitor filter, rendering the test Ineffective.
j.
Take a sample by holding the sampler in an upright (vertical) position, turn the three-way valve (1) to the TEST
position. Allow no more than l liter (1.0 qt) to flow through the monitor. Record the sample volume for reporting. When
the collection is completed turn the three-way valve to the off position before turning off the system pump. Remove the
sampler from the system fitting and replace the protective cap and plug. (figure 2-30)
Figure 2-30
2-22
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