ASME B107-56 pdf download BOOY REPAIR HAMMERS AND DOl l ‘ BLOCKS: SAFETY REQUIREMENTS 、4.1.2 The fender bumper has a striking surface anda struck face. See Fig. 3(e). 4.1.3 The chamfer on the bumping dinging, finishing.and other striking faces shall be a minimum of 0.010in.(0.25 mm). 4.1.4 Handles shall be of any design includingergonomic, that will withstand the appropriate testsspecified...