Assessment of exposure packaging worker and designing work methods using OCRA index in fertilizer producer company

Abstract

Repetitive tasks carried out by packaging workers of fertilizer producer company. These task led to some complains of pain and fatigue on upper body part of the workers based on Nordic Body Maps (NBM) questionnaire. This is because the workers work continuously for eight hours per shift and no recovery period. This study aims to determine risk level of musculoskeletal disorders and break time calculation. In this study, using Occupational Repetitive Actions (OCRA) index to reduce the risk level. The samples according to expert judgement criteria are three workers (packer clamper, packer tailor and loader). The improvement in this study is designing work methods with break time calculation. This improvement shows the risk reduction on the left hand of the packer clamper from 4,2 to 3,4 and the right hand from 9,9 to 8,2. Risk reduction on the left hand of the packer tailor from 3,44 to 2,2 and the right hand from 5,7 to 2,26 while the risk level on the left hand of loader from 1,4 to 0,87 and in the right hand from 2,17 to 1,18.

Assessment Of Worker Posture In Herbicides Production And Break Time Determination Using OCRA Index Method

“…The level OCRA Index was affect working time [17] and work posture [14]. In allocating optimal rest periods, the first step that needs to be done is to place lunch breaks.…”

“…And so there is no recommendation for proper body posture for workers. In another research using Occupational Repetitive Actions (OCRA) index to reduce the risk level of Repetitive tasks carried out by packaging workers in fertilizer producer company and the recommendations are resting schedules used declaration from ACGIH [14]. In this study, We determine the risk level of the repetitive task through the established OCRA method by observing the right and left-hand chart.…”