Impact Hammers
Found 6 free book(s)Standard Test Methods for Downhole Seismic Testing1
www.ce.memphis.eduexplosives, hammers, or air guns, are all acceptable P-wave generators. To produce an identifiable S wave, the source ... significantly different properties may impact the test results. Larger horizontal offsets of 4 to 6 m (12 to 20 ft) for the 2 For referenced ASTM standards, visit the ASTM website, ...
GARAGE/SHOP SAFETY CHECKLIST
www.keeptruckingsafe.orgImpact tools, hammers kept free of splinters/mushrooms? Extension + straight ladders extend 3’ beyond landing? Hoists inspected monthly and documented? Stepladder or commercial stepstool used for high access? Hoists inspected annually by outside service?
‘Struck-By’ Hazards
www.osha.govjack hammers, pavement saws 6. Working with powder-actuated tools 7. Pushing or pulling objects that may become airborne ... or use impact tools with mushroomed heads; the head could fl y off, striking you or others. Operators of powder-actuated tools (gunpowder) must be trained and licensed. Train all workers on safe operation of tools, and ...
Hand and Power Tool Safety - Wisconsin Department of ...
doa.wi.govHammers and Striking Tools – (Ex. Nail, soft-faced, ball-peen, chipping, sledge, setting, etc.) Use the correct hammer head, weight and size tailored to its designed purpose. Strike the surfaces squarely, avoid hitting at an angle because doing so could result in sparks occurring.
Metallurgical Aspects of HIGH- CHROMIUM WHITE IRONS
www.foundry-planet.comii) When conditions of repeated impact are anticipated, the lower-carbon alloys, class I type B (Ni-Hard 2), are recommended because they have lesscarbideand,therefore,greatertoughness. iii) A special grade, class I type C, has been developed for producing grindingballsandslugs.Herethenickel-chromiumalloycompositionhas
5 NOISE SOURCES - WHO
www.who.intimpact induced resonant free vibration of a surface. 5.2.2. Fluid Noise Air turbulence and vortices generate noise, especially at high air flow velocities. Turbulence can be generated by a moving or rotating solid object, such as the blade tip of a ventilator fan, by