Test the wrist strap/operator combination for continuity
daily or install constant monitors.
Clean the mats with a cleaner designed for static mats.
Remove all nonessential plastic items from the workstation
area. Insulative plastic items can store large amounts of
static charge that is not removed when placed on a mat or
grounded. Examples include: Styrofoam cups, plastic lunch
bags and containers, combs and brushes.
Require personnel that wear heel grounders to also wear a
wrist strap when they sit at a workbench. Most people lift
their feet or heels off the floor at some point while seated.
Use GFCI outlets when working with energized items.
Avoid parallel ground paths. The only connection to ground
for an operator at an ESD workstation should be the wrist
strap, heel grounders or work surface. Other uncontrolled
ground paths could create a shock hazard.
