In the subroutines that solve Helmholtz problems in three dimensions ( HIBEM3, HEBEM3 and HMBEM3) the boundaries must be represented in the form of a set of planar triangles. In order that the normal to the boundary points outward rather than inward the three nodes that define each element must be listed in the anti-clockwise direction when it is viewed from just outside the surface. The programs HIBEM3_T, HEBEM3_T and HMBEM3_T each solve Helmholtz problems in which the boundary under consideration is that of a sphere of unit radius.