Surface corrosion protection
Surface corrosion protection
(OP)
Dear All,
Can somebody tell me what coal oil leakage test is and what is its purpose?
Thank you.
Can somebody tell me what coal oil leakage test is and what is its purpose?
Thank you.





RE: Surface corrosion protection
RE: Surface corrosion protection
Coal oil is variety of kerosene close to jet fuel. There was a lot integrity testing done with kerosene as the pressure media. When I worked for a valve and fittings company we used kerosene.
I don;t know if ASTM has a test utilizing kerosene.
Read the full text page.
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RE: Surface corrosion protection
RE: Surface corrosion protection
RE: Surface corrosion protection
In my early years I seen this test used to check auto engine heads. They would clean the heads and soak them in kerosene drain off the ecess then set them in the sun for a couple of hours then wipe of the excess, and dust the head with whiting in flour sack.
This the second phase of the kerosene Test where they used a suspension of whiting in alcohol to get a better coating.
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RE: Surface corrosion protection
Besides of the joke, you should know that the API 650 ed 2007 has included in the shell testing section a new clause (para 2. of clause 7.3.5) which reads as follows:
"If sufficient water to fill the tank is not available, the tank may be tested by (1) painting all of the joints on the inside with a highly penetrating oil, such as automobile spring oil, and carefully examining the outside of the joints for leakage;...". I hope that the coal oil is a testing medium and not additive to the export cooking oil.
Cheers,
gr2vessels
RE: Surface corrosion protection
What design engineer wanted is exactly what are you saying. "Painting all of the joints on the inside with highly penetrating oil, such as automobile spring oil, and carefully examining the outside of the joints for leakage". Actually it was oil tank that he wanted to be tested for leakage. The problem was translating it from Chinese to English. The penetrant oil is by product of coal oil.
Thank you all for your time