HP Pavilion g6-2200 Maintenance And Service Manual page 43

The following table shows how humidity affects the electrostatic voltage levels generated by
different activities.
CAUTION:
Event
Walking across carpet
Walking across vinyl floor
Motions of bench worker
Removing DIPS from plastic tube
Removing DIPS from vinyl tray
Removing DIPS from Styrofoam
Removing bubble pack from PCB
Packing PCBs in foam-lined box
ENWW
A product can be degraded by as little as 700 V.
Typical electrostatic voltage levels
Relative humidity
10% 40%
35,000 V 15,000 V
12,000 V 5,000 V
6,000 V 800 V
2,000 V 700 V
11,500 V 4,000 V
14,500 V 5,000 V
26,500 V 20,000 V
21,000 V 11,000 V
Preliminary replacement requirements
55%
7,500 V
3,000 V
400 V
400 V
2,000 V
3,500 V
7,000 V
5,000 V
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