1.1 This test method covers a field procedure for determin-ing the transmissivity and storativity of geological formations having permeabilities lower than 10 −3 µm 2 (1 millidarcy) using constant head injection.
1.2 The transmissivity and storativity values determined by this test method provide a good approximation of the capacity of the zone of interest to transmit water, if the test intervals are representative of the entire zone and the surrounding rock is fully water-saturated.
