HP Compaq nx9500 Series Maintenance And Service Manual page 95

Typical Electrostatic Voltage Levels (Continued)
Event
Removing DIPS from Styrofoam
Removing bubble pack from PCB
Packing PCBs in foam-lined box
✎
A product can be degraded by as little as 700 V.
Table 4-2 lists the shielding protection provided by antistatic bags
and floor mats.
Material
Antistatic plastic
Carbon-loaded plastic
Metallized laminate
Maintenance and Service Guide
Table 4-1
Table 4-2
Static-Shielding Materials
Use
Bags
Floor mats
Floor mats
Removal and Replacement Preliminaries
Relative Humidity
10% 40%
14,500 V 5,000 V
26,500 V 20,000 V
21,000 V 11,000 V
Voltage Protection Level
1,500 V
7,500 V
5,000 V
55%
3,500 V
7,000 V
5,000 V
4–7