ASME B107.600:2016 pdf free download

ASME B107.600:2016 pdf free download.Screwd rivers and Screwdriver Bits.
6.4 lip Toughness Test
The tip shall be tested as in the torsion test described in para. 6.2 except that the torque shall be increased until failure. If a fracture occurs, the pieces shall be refitted, and the tip shall show that permanent deformation had occurred prior to fracture. lithe tip fails without exhibiting such deformation, it shall be considered to have failed the tip toughness test.
6.5 Bending Moment Test (Type I, Class 1)
The bending moment test for flat tip screwdrivers shall be conducted in a manner similar to that shown in Fig. 7. In this test, the force shall be applied near the middle of the handle, the force acting at right angles to the axis of the screwdriver to lift weight W. A load- measuring device may be used in lieu of a deadweight in applying the bending load. When tested to the minimum bending moment specified in Table I, the assembly shall not fracture, the blade shall not show any permanent deformation, and the handle shall not loosen from the shank.
6.6 Solvent Resistance Test (Types I and IV)
Screwdrivers shall be capable of undergoing the fol lowing test without specified damage. Handles are to be fully immersed in motor vehicle brake fluid (SAF J1703), gasoline, ethylene glycol, and ethyl alcohol for 15 mm at room temperature, removed, and allowed to stand for 24 hr. A new assembly shall be used for each of the four test liquids. There shall be no permanent swelling, surface attack (except for manufacturer’s identification or paint removal), or failure to comply with paras. 6.3 and 6.7.
6.7 Handle Impact Test (Type I)
This test shall be performed at room temperature. The blade of the screwdriver shall be mounted vertically in a fixture affixed to the base of a suitable falling weight impact device. The blade shall rest on a solid surface to ensure that the blade does not move vertically in the fixture. The weight shall be 15 lb (6.8 kg) and shall be dropped unrestricted with some means to ensure that the full force of the falling weight will be acting normal to the striking surface. In conducting this test, care shall be taken that the impact energy will not be expended in flexing of the blade or in driving the screwdriver tip into the surface on which it rests. The blade may be shortened or blunted, if necessary, to ensure a proper test. An equivalent test may be used if the impact energy requirement in Table 5 is met.