This International Standard specifies general methods for data acquisition and processing concerning hand-transmitted vibrations induced by portable chain saws. The methods are valid irrespective of how the chain saw is operated during the test, for example, whether it is hand-held or fitted in a st?nd, and whether it is cutting a log or not.
This International Standard specifies an operator hand-held procedure for acquisition of vibration data from portable chain saws.
NOTES
1 The hand-arm system exerts an influence on the hand-transmitted vibration and different hands and grips exert different influences. Therefore, the development of a standardized st?nd for holding the saw during the measurement is planned. The development of such st?nds is in progress.
2 The measurements in the three axes shall be made at, or clearly related to, the surface of the hand where the energy enters the body.
As the hands of the person are in direct contact with the vibrating sur-face of the hand-grip, the transducer should be fastened to the vibrating structure.
This International Standard is primarily intended for user and manufacturer purposes.