G - Physics – 01 – M
Patent
G - Physics
01
M
G01M 3/32 (2006.01)
Patent
CA 2128051
- 17 - ABSTRACT LEAK DETECTION OF UNDERGROUND OR OTHERWISE INACCESSIBLE LIQUID STORAGE TANKS A test procedure for the testing liquid storage tanks, for leakage, comprises: immersing at least part of test equipment in the liquid in question and fixing the equipment in position with respect to the tank; allowing a quantity of the liquid in question to be admitted to a multiplier tube, until the level of liquid in the multiplier tube equates to that in the tank; isolating the liquid in the multiplier tube from that in the tank for an appropriate test period; introducing a predetermined measure (M) of liquid of the same nature as that in the tank into the test equipment to establish a recordable datum level removing the predetermined measure (M) of liquid from the test equipment; re-connecting the liquid in the multiplier tube with that in the tank; waiting a prescribed period of time; taking the same measure (M) of liquid and re-introducing this measured amount into the test equipment; and observing any fall of the meniscus of that measure from the previous datum level, which fall would indicate leakage from the tank. The invention also includes test equipment (9).
Peacock Clifford T.
Robic
LandOfFree
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