ESD Protection has 2 elements and BOTH must be satisfied:

First is the 'Objective' evidence; e.g.: The static field
from a person who doesn't have his top button snapped
maybe xx volts and totally acceptable.

Second is the 'Subjective' appearance (Feelings - No data);
e.g.: Even though the field meter says the smock is protecting the ESD
sensitive item, the auditor doesn't consider that because he just
doesn't like it or because the procedure doesn't allow it.
You have to be very careful when writing your ESD
procedures.
Check out the new ANSI/ESD-S20.20-1999 ESD Standard for Protection of
Electrical and Electronic Parts/Equipment. It is available free on the
Web.
http://www.esda.org

Sometimes you have to ground things that don't need to be grounded.

Paul Signorelli
NARTE ESD Certified Engineer

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