HP NX9500 manual Static-Shielding Materials, Material Use Voltage Protection Level

Removal and Replacement Preliminaries

Table 4-1

Typical Electrostatic Voltage Levels (Continued)

Relative Humidity

Event	10%	40%	55%
Removing DIPS from Styrofoam	14,500 V	5,000 V	3,500 V
Removing bubble pack from PCB	26,500 V	20,000 V	7,000 V
Packing PCBs in foam-lined box	21,000 V	11,000 V	5,000 V

✎ 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.

Table 4-2

Static-Shielding Materials

Material	Use	Voltage Protection Level
Antistatic plastic	Bags	1,500 V
Carbon-loaded plastic	Floor mats	7,500 V
Metallized laminate	Floor mats	5,000 V

Maintenance and Service Guide 4–7