Noncentrosymmetric superconductors have been identified as good candidates for unconventional superconductivity. In particular, there is the possibility of Cooper pairs with mixed pairing symmetries. NbxRe1-x forms a noncentrosymmetric structure for 0.13 < x < 0.38 with a Tc of 8.8 K for x = 0.18. We wish to carry out zero and longitudinal field muon spin relaxation measurements and transverse field muon spin rotation measurements on two powder samples with different values of x down to 0.3 K. The aim is to look for broken time reversal symmetry and to measure the temperature dependence of the magnetic penetration depth. This will be used to deduce information about the superconducting gap symmetry. By comparing samples with different values of x, it will be possible to examine the effects on the pairing symmetry of adding or removing heavy atoms and altering the spin-orbit coupling.