Hereâs what you can expect: 1  First, a speculum is placed in the vagina, just like for a Pap. The cervix is cleaned off with a soap solution.Then a soft flexible tube, thinner than the inside of a pen, is passed into the uterus. 2  The speculum is removed and the ultrasound probe inserted.
You will likely have similar results. Closed cell polyurethane foam will only absorb water if the individual cells are damaged, which CAN happen over time, but the causes of wet foam in boats isn't all that clear. It is likely that freeze cycles will gradually cause foam deterioration.
The densities of open-cell foams are around 1/2 to 3/4 of a pound per cubic foot. Closed-cell foam has varying degrees of hardness, depending its density. A normal, closed-cell insulation or flotation polyurethane is between 2 and 3 pounds per cubic foot. It is strong enough to walk on without major distortion.Most of the cells or bubbles in the foam are not broken; they resemble inflated balloons or soccer balls, piled together in a compact configuration.losed-cell foam has varying degrees of hardness, depending its density. A normal, closed-cell insulation or flotation polyurethane is between 2 and 3 pounds per cubic foot. It is strong enough to walk on without major distortion.