1.1.1 ,Some methods call for results in inch pound-force (in.·,lbf) as opposed to the common foot pound-force/inch (ft·,lbf/in.) or Joule/meter (J/m) (energy absorbed per unit of specimen of similar cross-section). This method does not purport to cover all the issues involved with the pendulum impact of cantilever beams and suggests that Test Method D4812 and Test Methods D256 be reviewed before this methodology is attempted.