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3versanSafetyBasics-niosh-AssumptforOrdPickWeightsDiag

Safety Basics - Order Picking

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NIOSH Assumptions for Order Picking Weights Diagrams
Voir: manutention charges equationreviniosh et page 5 du guide ..\guidemanualorderpicking.php
manutention_generalites.php et introduction_ergonomie.php

Assumptions
Vertical reach: Shelf heights are 10cm, 50cm, 90cm and 130cm above the ground.	If shelf heights between 10 and 150cm, use shelf that most closely matches. If shelf heights are at 0cm or between 150 and 175 cm reduce weight. If shelf heights above 175cm – no lifting should occur from that height.	If shelf heights are lower than ground level = reassess
Horizontal reach: Reach distances are 30cm to first box, 50cm to second box and 63cm to third box on shelf	If reach distances are increased – reduce weight	If reach distance decreased - reassess
Frequency and duration: 1 lift every 2 minutes for a duration of 2 hours	If frequency increased – reduce weight If duration increased – reduce weight If duration is for more than 8 hours - reassess	If frequency decreased – reassess If duration decreased - reassess
Size of person in shoes: Stature – 169 cm Shoulder height – 140 cm Elbow height – 110 cm Knuckle height – 76 cm Knee height – 47 cm Mid lower leg – 36 cm
Twisting: No twisting during lifting	If any twisting occurs – reduce weight
Object size: Compact, evenly distributed load lifted using two hands with good hand holds.	If load is large, unstable or difficult to handle – reduce weight. If there are poor hand holds – reduce weight. If load lifted by one hand only – reduce weight.
Technique: Object lifted: - with two hands; and - using a recognised lifting technique; and - from a specific position detailed in the diagram; and - with ample space to lift object; and - placed onto a table or belt and knuckle height; and - no precision placement is required - with no more than two steps taken; and - on good floor surfaces; and - in good environmental conditions.	If item is placed on the ground or at height – reassess If more than two steps are taken – reassess If object lifted while kneeling – reassess If lifting occurs in restricted space – reassess If lifting occurs on slippery floors – reassess If precision placement of the object is required - reassess If lifting occurs in an unfavourable environment (i.e. 19–26oC, relative humidity 35-50%) - reassess	If object slid close to the body before lifting – use weights for first box.
Speed: Lifting and lowering is conducted at a slow speed.	If lifting or lowering occurs at a speed of 75cm per second or more - reassess
Destination of lift: Object lifted from shelf and placed without precision onto a belt or pallet or trolley at knuckle height while close to the body.	Object placed to a position below knee height or above elbow height – reduce weight.