How do you tell an anti-static material?

[mario]

Dear all,


I know this subject is really just marginal to this newsgroup.
Still, I don't now a better place and a smarter bunch, so here it goes: I
have always been wondering how do you know whether a plastic bag is
anti-static or not? I tried to use my digital multimeter to measure
resistance, but any static bag I have tried, shows infinite resistance - an
insulator. So, obviously, that wasn't the way.

But which is it, then? How does your average Joe with a soldering iron (and
little more) tell whether his precious electronic wares are in a safe place?


grateful in advance!



mario

 

[Johnboy]

The bags are usually pink or black in color.

Dear all,
I know this subject is really just marginal to this newsgroup.
Still, I don't now a better place and a smarter bunch, so here it
goes: I
have always been wondering how do you know whether a plastic bag is
anti-static or not? I tried to use my digital multimeter to measure
resistance, but any static bag I have tried, shows infinite
resistance - an
insulator. So, obviously, that wasn't the way.
But which is it, then? How does your average Joe with a soldering
iron (and
little more) tell whether his precious electronic wares are in a
safe place?
grateful in advance!
mario

 

[Spehro Pefhany]

On Sat, 4 Sep 2004 20:12:49 -0500, the renowned "Johnboy"
<jondne@knology.net> wrote:

The bags are usually pink or black in color.

Or silvery.

If they are dead clear, they are prolly not antistatic.

Best regards,
Spehro Pefhany
--
"it's the network..." "The Journey is the reward"
speff@interlog.com Info for manufacturers: http://www.trexon.com
Embedded software/hardware/analog Info for designers: http://www.speff.com

 

[mario]

"Spehro Pefhany" <speffSNIP@interlogDOTyou.knowwhat> wrote in message
news8rkj010hqs765qc3914se0ucl1r1qa725@4ax.com...

On Sat, 4 Sep 2004 20:12:49 -0500, the renowned "Johnboy"
jondne@knology.net> wrote:

The bags are usually pink or black in color.

Or silvery.

If they are dead clear, they are prolly not antistatic.
That's no good for me. I only know which bags are certainly *not*

anti-static, but just by color you can't tell whether they are for sure. I
have a lot of these pinkish plastic bags in which I eceivd several PCBs.
They might be anti-static bags, or just document folders.
Or, I have this bluish plastic bag, which contained a CD ROM. Probably
anti-static, but who can be sure?

These incertainties prompted me to ask in the first place.

 

[Jamie]

you could use a simple neo lamp and rub the
material while the lamp is on it or very close
to the material
the other way is to construct your self a
simple FET probe using clamping diodes to protect
the FET GATE. etc...


mario wrote:

"Spehro Pefhany" <speffSNIP@interlogDOTyou.knowwhat> wrote in message
news8rkj010hqs765qc3914se0ucl1r1qa725@4ax.com...

On Sat, 4 Sep 2004 20:12:49 -0500, the renowned "Johnboy"
jondne@knology.net> wrote:


The bags are usually pink or black in color.

Or silvery.

If they are dead clear, they are prolly not antistatic.

That's no good for me. I only know which bags are certainly *not*
anti-static, but just by color you can't tell whether they are for sure. I
have a lot of these pinkish plastic bags in which I eceivd several PCBs.
They might be anti-static bags, or just document folders.
Or, I have this bluish plastic bag, which contained a CD ROM. Probably
anti-static, but who can be sure?

These incertainties prompted me to ask in the first place.