There are a couple ESD symbols.

 

The ESD susceptibility symbol incorporates a reaching hand in a triangle
with a slash through it and is used to indicate that an electrical or
electronic device or assembly is susceptible to damage from an ESD event.



The ESD susceptibility symbol should be used on assemblies and devices that
have a sensitivity to ESD events.

The ESD protective symbol differs from the ESD susceptibility symbol, by the
addition of an arc around the outside of the triangle and the omission of
the slash across the hand and the triangle.



The ESD protective symbol should be used to identify items that are
specifically designed to provide ESD protection for ESDS assemblies and
devices. Examples of these are packaging, ESD protective clothing and
personnel grounding equipment. The ESD protective symbol should also be used
on items designed to replace static generative materials. 

Your box is static dissipative 1 x10E4 to less than 1 x 10E11 ohms having
sufficient resistance that electrostatic charges will be removed to ground
when grounded. It would be appropriate to mark such a box with the ESD
protective symbol.

 

It would be proper to mark the box with both symbols if the contents were
ESD sensitive items.

 

Gene Felder

[log in to unmask] 

 

 

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Juan T. Marugán
Sent: 2011 - 06 - 28 12:16 PM
To: [log in to unmask]
Subject: [TN] ESD Cardboard boxes???

 

Hello all.

 

There are some cardboard boxes (brown color) with the ESD symbol printed in
the outer surface. I suppose the symbol only indicates that there is an ESD
product inside, but I’m not sure. Am I right?

 

Reason of my confusion: I’ve measured the surface resistance in these boxes
and is 1x10E10 ohms: Static dissipative?...

 

My concern is because de presence of these materials in the workshop.
Mechanical parts, for example, are packaged in cardboard boxes and it is a
hard work to re-package them into conductive boxes (plastic or cardboard)
before to use them in the line.

 

If somebody can give some idea, I’d appreciate it.

 

Thank you so much.

 

Juan

Indra Sistemas. Spain.

 

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