Petroleum cargo tanks should not be topped off at deck level when loading on a cold day due to which of the following?
Air pockets may cause the cargo to bubble out of the ullage hole
The tank valve may be stiff and a spill will occur before the valve can be closed
The increased viscosity of the product requires higher loading pressure which increases the chances of a spill
A subsequent temperature rise will cause the cargo to overflow
No comments yet
Be the first to share your thoughts!