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• Recommended work surface space is 160 cm
wide by 80 to 90 cm deep (63 inches by 32 to
36 inches deep), or a corner unit of 91 to 107 cm
deep (36 to 42 inches). The recommended
vertical adjustment range is 66 to 77 cm (26 to
30 inches). If the height is fixed, it should be
between 72 and 75 cm (28.5 to 29.5 inches).
• There should be at least 6 cm (2 inches) between
your thighs and the work surface. If the surface
has a kneehole, it should be at least 58 cm
(23 inches) wide, 65 cm (25.5 inches) high, and
60 cm (24 inches) deep.
• Recommended lighting levels are between
300 and 500 lux (30 to 50 foot-candles). Values
over 1000 lux (100 foot-candles) are considered
to be too bright. For work on the screen, 300 lux
(30 foot-candles) is enough for most work.
When documents are to be read, 500 lux
(50 foot-candles) is recommended.
Your Work Posture
Sitting in one position for long periods can be
uncomfortable. To minimize the potential for
physical discomfort or injury, it’s important that you
maintain proper posture.
•
Chapter 1
Preparing to Use Your Computer
11
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