You must maintain a constant water level, at least twenty-four hours. Measurement of the cylinder must be measured before and after water filling.Each measurement interval must measure around the cylinder by measuring point distance for each point must be the same and, with no more than.10 m.(3) check leaks of welding between steel plate reinforced with tank strength by using air pressure.Compressor pressure not less than the 68.9 Kbps Pascal (10 pounds per square inch), but not exceeding 103.4 kilo Pascal.(15 pounds per square inch).(4) in the case of floating roof oil tank floating roof type, or within a test for leaks at the floating buoys.8 test and verify the message according to the 6 and 7 provide the staff know before.The operation, at least 7 days and test results and review. Must be received by the?Department of energy businessVerse 9 oil tank under the ground, and a large oil tank horizontally. When construction is finished.The test must be performed as follows:(1) to test the cylinders and joints using low pressure compressed air or water pressure with the pressure.At least 20.6 kilo Pascal (3 pounds per square inch), but not more than 34.5 kV Pascal (5 pounds per square inch).In that case, use the water pressure to take a test no less than one hour. In the case of using air pressure.Or an inert gas, take a test, as defined in the following table.
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