Doug,
one way to assure yourself and the customer is to buy a number of ESD indicators. Put them on the wall, one wire to the floor, let people walk some steps, go to the indicator, one foot on the metal plate one hand on the upper plate and you get a GO or NOGO. The indicators cost little and are extremly easy to handle. That's one way to look upon your question. And and accepted way!
Ingemar Hernefjord
Ericsson Microwave Systems

What's the actual resistance of a floor that's
considered acceptably "conductive" for an area
that will be handling telecommunication boards?
I mean, if a customer came into your facility
and wanted to measure your floor to have it pass
or fail being a suitably "conductive", what
resistance would they use for that criteria?

A former coworker informed me that my old company
is moving to their new building.  With the move
is the discussion about whether to leave the new
area as bare concrete, tile it, or paint it.
I'm of the opinion that they can leave it as bare
concrete, but that's only my opinion.

The old building had conductive tile with copper
strips and was extremely expensive but reliable.
It also seemed to make the customers feel at ease
with something they could see as opposed to bare
concrete.  I can remember making periodic checks
with a surface resistance tester, but for the life
of me, I can't remember the limits.

Any additional comments or opinions appreciated,
since this topic seems to come up here every now
and then.

Regards,  Doug

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