bulk atty testing
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No, cellophane should make an effective insulator. In fact, it is used as insulation in some applications.
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To test the resistance(ohms)(symbol on multimeter looks like greek char 'omega'), which is what I assume you're trying to measure, you'll have to be able to put one probe on the threaded part, and one probe on the center post (you didn't mention what atty, so I can't be much more specific)... Be sure your multimeter (a voltmeter would only test volts, and would not work for your purposes) is set to measure ohms (usually stated as 20ohm on the meter)...
If I understood your question, this should help?
Pic of 'zeroing out' or calibrating the multimeter, notice mine doesn't goto 0, it reads 0.4-0.6, I need a new one ($4 @ harbor freight):
Pic of taking Ohm measurement:
If I understood your question, this should help?
Pic of 'zeroing out' or calibrating the multimeter, notice mine doesn't goto 0, it reads 0.4-0.6, I need a new one ($4 @ harbor freight):
Pic of taking Ohm measurement:
If you protect them from moisture and air pollutants, they should be good for decades or more. If you really want to be protective: A small air tight container such as from "Lock & Lock" with a silica gel desiccant thrown in for good measure will do the trick. That'll keep 'em til the great grandkids need 'em. 
NP, Volt only meters have their place (I've bought a couple), but if you need to read Ohms (like you would be trying to do), they're no good for that. I plan on building one into a device just to read the Volts between the batt and the atty. You need a multimeter to read Ohms, resistance, and to read Volts on a larger scale, again, I picked mine up for <$4 @ Harbor Freight locally, if there's one close to you, I recommend them, great prices... Where ever you get one, turn it to the appropriate Ohms (probably the lowest Ohm setting, on mine it's 20), calibrate it by touching the probes until it reads all 0, if it doesn't read all 0, take it back... Then you should be all set to test the lot...
You mean volt/ohm meter. You can pierce the cellophane with the meter leads. If the probes are rounded and not pointy, you can file them to a point.
Cool, they all 'measured up' I'm assuming (keep in mind if you spent less then ~$100 on you multimeter, it's accuracy could be off by up to ~.3-.4)?
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