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Example: A worker lifts a 13 kg load from loosely piled pieces of metal from the floor to the table five times an hour.
To calculate the recommended weight limit (RWL) for the task:
Weight - 13 kg
H (Horizontal Distance) - 30 cm
V (Vertical Distance) - 0 cm
D (Lifting/ carrying Distance) - 115 cm
F (Frequency) - 12 min
A (Angle) - 0°
C (Coupling/quality of grip) - poor
23 Kg x 0.83 x 0.78 x 0.85 x 1.00 x 1.00 x 0.90 = 11.439 kg
Therefore the TASK IS DANGEROUS.
The components: V - starting height, D - lifting distance and H - horizontal distance and C - poor grasp contribute similarly to the risk.
23 kg x 0.83 x 0.93 x 0.93 x 1.00 x 1.00 x 0.90 = 14.86 kg
The weight of the load at 13 kg is lower than the recommended weight limit now calculated to be 14.86 kg.
Therefore, MOST WORKERS CAN SAFELY PERFORM THE TASK.
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Although every effort is made to ensure the accuracy, currency and completeness of the information, CCOHS does not guarantee, warrant, represent or undertake that the information provided is correct, accurate or current. CCOHS is not liable for any loss, claim, or demand arising directly or indirectly from any use or reliance upon the information.