percolation test(redirected from Perc test)
Also found in: Financial.
percolation test[pər·kə′lā·shən ‚test]
A test to determine the suitability of a soil for the installation of a domestic sewage-disposal system, in which a hole is dug and filled with water and the rate of water-level decline is measured.
A test to determine the rate at which a particular soil absorbs effluent; a hole is dug in the soil and filled with water, then the rate at which the water level drops is measured. (See illustration p. 716.)