paraIn testing equipment against vibration, using triaxial vibration in combination with rapidly changing high and low temperatures, highly accelerated life testing (HALT) uncovers design defects and areas of products while highly accelerated stress screen (HASS) detects component and manufacturing irregularities. However, for products such as rotary hammers, the Physical Agents Directive 2002 44EC states that users should not be exposed to more than 2.5m/ssup2/sup over an eight hour reference period up to the exposure action value. Also, under the EN60745, for a 2kg rotary hammer, the magnitude of triaxial vibration is measured, in addition to accelerometers measuring handle and side handle vibrations. Meanwhile, the Off-Highway Plant and Equipment Research Center (OPERC) has information available on over 700 powertool appendage combinations, which can be useful for equipment designers. Another standard is the ISO5349, which is a generic vibration standard for testing plant and equipment in the workplace./para
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