Also found in: Medical.
pneumatic test[nu̇′mad·ik ′test]
Pressure testing of a process vessel by the use of air pressure.
water test when there is a danger of water freezing during the test.A test that applies uniform air pressure throughout a drainage system being tested for leakage. This test is recommended in lieu of a
air test, pneumatic test
A test for leaks in drainage systems, in soil, waste, and ventilating pipe systems, or in ductwork; all openings are sealed, and compressed air is introduced into the system; air leakage is indicated by means of a U-gauge or other suitable pressure gauge.