PPE is required for voltage testing, i.e., "00" or "0" voltage rated gloves with leather protectors, plus voltage rated test equipment. This also means the proper category. CAT I, II, III, IV. The closer to the utility source the higher the category instrument required for safe testing.
See NFPA 70E Table 130.7(9)(a) for Panel Board Rated at 240V and Below for PPE required.
If an arc flash study has not been performed then voltage testing PPE also requires a Hooded Face Shield. The task tables show this as 2*.
I believe with the next edition of NFPA 70E, face shields will be required for all testing with hand held meters.