In a study by Bj?rksten et al. 1994 [1], approximately 60 %of female laboratory technicians who pipetted more than300 hours per year, reported hand ailments. Buckle andDavid 1997 [2] reported that approximately 90 % ofparticipants complained of problems in the hand areafollowing continuous pipetting for 60 minutes.The possible health consequences of such strain in thelaboratory are obvious.