Flow tests are required to analyze the hydraulic
properties of the fractured granite core. Hydraulic
properties such as the residence time, the pore water
velocity, the pore volume, and the aperture width can be
determined by evaluating the breakthrough curves of a
non-sorbing tracer. In this study, 0.01 M of NaBr (Aldrich)
was used as a non-sorbing tracer of Br−.