OK then....

Thanks for the replies.  Even the ones that turned this into a more surreal experience than even I typically expect to have on any given workday.

My list of more bland replies (albeit it begrudgingly useful) both on and off forum include the following:

#1 CaCl2 from deicing compounds. 
#2 Calcium from factory humidification misters
#3 Talc from powdered gloves 
#4 E-glass in the laminate 
#5 filler in the solder mask
#6 DI water 

The above list is useful from a source stand point, however am still struggling with the effects that could be seen with low levels of Ca (i.e. <1-2 ugm/inch). I suspect none if any. 

Studies conducted by the Minzari in Denmark suggests that calcium warrants limited concerns as only Sn, Pb, Cu and Ag present sizable ECM risk.  (IEEE, volume 9, Sept 2009).
 
I have a suspicion that any requirements for low levels of calcium on assemblies have been propagated from those used in the semiconductor industry. While those may be required in semiconductor world, they may not have good applicability in the realm of PCA manufacture.  

Any further thoughts on "RISKS" associated with low levels of calcium?

Rich Kraszewski
PLEXUS


-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Steve Gregory
Sent: Tuesday, February 11, 2014 9:15 AM
To: [log in to unmask]
Subject: Re: [TN] Risks Associated with Calcium

Hi Steve,

You hit the nail on the head!!

http://www.youtube.com/watch?v=KX9mBaHtTrs


Steve 

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Steven Creswick
Sent: Tuesday, February 11, 2014 7:22 AM
To: [log in to unmask]
Subject: Re: [TN] Risks Associated with Calcium

Doug,

Don't overlook that which is right in front of your co-ops face!

Please remember that a cow's tongue is long enough, and flexible enough to reach inside its nostrils and extricate whatever may be resident there.

Certainly, at this time of year there may be significant 'thickening agents' and moisture present.

Just thought you would like to know for testing!


Steve Creswick
Sr Associate - Balanced Enterprise Solutions http://www.linkedin.com/in/stevencreswick
                         616 834 1883




______________________________________________________________________
This email has been scanned by the Symantec Email Security.cloud service.
For more information please contact helpdesk at x2960 or [log in to unmask] ______________________________________________________________________

______________________________________________________________________
This email has been scanned by the Symantec Email Security.cloud service.
For more information please contact helpdesk at x2960 or [log in to unmask] 
______________________________________________________________________

______________________________________________________________________
This email has been scanned by the Symantec Email Security.cloud service.
For more information please contact helpdesk at x2960 or [log in to unmask] 
______________________________________________________________________