px_en-KIM-LHC-ws_printsheet
A S S E S S M E N T O F M A N U A L H A N D L I N G T A S K S
B A S E D O N K E Y I N D I
C A T O R S V e r s i o n 2001 Where there are a number of individual activities with considerable physical strains, they must be estimated separately.
Workplace/Activity:
1st step: Determination of time rating points (Select only one column !)
Lifting or displacement operations (< 5 s)Holding
(> 5 s)
Carrying
(> 5 m)
Number on working
day Time rating
points
Total duration on working day Time rating
points
Overall length on
working day
Time rating
points
< 101< 5 min1< 300 m1 10 to < 402 5 to 15 min2300 m to < 1km2 40 to < 200415 min to < 1 hr4 1 km to < 4 km4 200 to < 5006 1 hrs to < 2 hrs6 4 to < 8 km6 500 to < 10008 2 hrs to < 4 hrs88 to < 16 km8≥ 100010≥ 4 hrs10≥ 16 km10
Examples: ? laying bricks, ? placing workpieces into a machine ? taking boxes out of a container and putting them onto a conveyor belt Examples: ? holding and guiding a cast iron
slug while working on a wheel stand, ? operating
a hand grinding machine, ? operating a weed-
eater
Examples:? furniture removal,
?
delivering scaffolding parts to a
building site
2nd step: Determination of rating points of load, posture and working conditions Effective load1)
for men Load rating point Effective load1) for women Load rating point
< 10 kg1< 5 kg
1
10 to < 20 kg2 5 to <10 kg2
20 to < 30 kg410 to <15 kg4
30 to < 40 kg715 to < 25 kg7
≥ 40 kg25≥ 25 kg25
1) …Effective load“ means in this context the real action force which is necessary for moving load. This action force does not correspond to the load mass in each case. When tilting a carton, only 50 % of the load mass will have an effect on worker and when using a cart only 10 %.
Typical posture,
position of load2)
Posture, position of load Posture rating
point
?Upper body upright, not twisted
?When lifting, holding, carrying und lowering the load is
close to body
1
?Slightly bending forward or twisting the trunk
?When lifting, holding, carrying und lowering load is
near to medium to body
2
?Low bending or far bending forward
?Slightly bending forward with simultaneous twisting of
trunk
?Load far from the body or above shoulder height
4
?Bending far forward with simultaneous twisting of
trunk
?Load far from body
?Restricted stability of posture when standing
?Crouching or kneeling
8
2) To determine the posture rating points the typical posture during manual handling must be used. For example when there are different postures with load a mean value must be used – not occasional extreme values.
Working conditions
Working conditions
rating point
Good ergonomic conditions, e.g. sufficient space, no physical obstacles within the workspace, even level and solid flooring, sufficient lighting, good gripping conditions 0Space for movement restricted and unfavourable ergonomic conditions
(e.g. 1: space for movement restricted by too low high or working area less than 1,5 m 2
or 2: posture stability impaired by uneven floor or soft ground)
1
Strongly restricted space of movement and/or instability of centre of gravity of load (e.g.transfer of patients)
2
3rd
step: Evaluation
The rating points relevant to this activity are to be entered and calculated in the diagram.
Load rating points
+
Posture rating points
+
Working conditions rating points
=
Total
x
Time rating
points
=
Risk score
On the basis of the rating calculated and the table below it is possible to make a rough evaluation. 3)
Regardless of
this provisions of the Maternity Leave Act apply.
Risk range Risk score Description
1< 10Low load situation, physical overload unlikely to appear.
210 bis < 25Increased load situation, physical overload is possible for less resilent
persons 4)
. For that group redesign of workplace is helpful.
325 bis < 50Highly increased load situation, physical overload also possible for normal persons. Redesign of the workplace is recommended.
4
≥ 50
High load situation, physical overload is likely to appear. Workplace
redesign is necessary 5)
.
3)
Basically it must be assumed that as the number of point rating rises, so the risk of overloading the muscular-skeletal system increases. The boundaries between the risk ranges are fluid because of the individual working techniques and performance conditions. The classification may therefore only be regarded as an orientation aid. More exact analyses require specialist ergonomic knowledge.
4)Less resilent persons in this context are persons older than 40 or younger than 21 years, newcomers in the job or people suffering from illness.
5)
Design requirements can be determinated with reference to the number of point in the table. By reducing the weight, improving the execution conditions or shortening the strain time, elevated stress can be avoided.
Check of the workplace necessary for other reasons: !
Reasons:__________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
Date of assessment:__________________Assessed by: __________________________________________
Ed. by ?Federal Institute for Occupational Safety and Health and ?Committee of the Laender for Occupational Safety and Health
(?Bundesanstalt für Arbeitsschutz und Arbeitsmedizin - BAuA und ?L?nderausschuss für Arbeitsschutz und Sicherheitstechnik - LASI) 2001