No, as the insulation is contained within a masonry wall, it doesn't need to be 'dense'. For insulation and other purposes, a light density is better. Before installation, the Technician will undertake a quality test to ensure the insulation will go into the wall at the right density. He will also note the amount of material used, to know that sufficient insulation has been installed.

Note: Drilling a hole in the outer wall and testing the cavity fill with a rod or pencil will not provide any meaningful information.