Er, yes....

Without looking into it further, I'd be a bit wary of using just
conductive chairs, as I'm sure that the operators
would be unwilling to wear conductive trousers/skirts/panties etc to
make good continuity etc.

Shoes/feet are not always in contact with the ground when sitting down
(& are the socks conductive?)
Hands are not always in contact with the floor either.
So the only true way of removing any static charges from the operator
would be to have a direct link to a ground point.
Wrist straps. Tested every morning (and recorded).



>-----Original Message-----
>From:  d. terstegge [SMTP:[log in to unmask]]
>Sent:  Friday, November 05, 1999 9:28 AM
>To:    [log in to unmask]
>Subject:       [TN] Wrist wraps for seated operators
>
>Hello Technet,
>
>We've recently received some complaints from a customer who is not happy with
>the fact that our operators don't wear wrist wraps during seated operations
>like handsoldering and inspection. Our factory relies on  grounding through
>the (conductive) chairs, ESD-shoes, conductive floor and ESD-workbenches, but
>the chairs are tested only once per year, which is obviously less frequent
>then one would test wrist wraps.
>Is the customers concern justified, and should we introduce wrist wraps ?
>
>Daan Terstegge
>Unclassified
>
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