The permeability apparatus is used to determine the water proofing of the petroleum bitumen felt and the roofing sheet. The apparatus has a main body fitted with hydraulic pressure system, three specimen holder, Pressure gauge and control knobs.
The permeability apparatus is used to determine the water proofing of the petroleum bitumen felt and the roofing sheet. The apparatus has a main body fitted with hydraulic pressure system, three specimen holder, Pressure gauge and control knobs.