[en] The most important rock property to be obtained from Step 2 of the Jointed Block Test (JBT) is the bulk modulus of elasticity of Pomona basalt. The purpose of the JBT is to develop testing techniques which will allow determination of this modulus. The main concern of this report is to define loading conditions for Step 2 of the JBT which are calculated to preclude specimen disturbance (movement), which would make it impossible to determine the modulus of elasticity of the undisturbed rock specimen. Issues considered include the likely effect of specimen disturbance on rock mass deformation properties, and an approximate specification of applied loads to prevent nonlinear effects. The results of a comprehensive three-dimensional elastic analysis of block response to various sets of applied surface tractions are presented and discussed. 7 refs., 41 figs