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April 2009

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Subject:
From:
Karen Tellefsen <[log in to unmask]>
Reply To:
TechNet E-Mail Forum <[log in to unmask]>, Karen Tellefsen <[log in to unmask]>
Date:
Mon, 27 Apr 2009 09:42:57 -0400
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Purell:



Ingredients:

Active Ingredients: Contains: Ethyl Alcohol (62%)



Inactive Ingredients: Water, Glycerin, Isopropyl Myristate, Propylene

Glycol, Tocopheryl Acetate, Aminomethyl Propanol, Carbomer, Fragrance

(parfum)





The glycerin and propylene glycol would concern me, they're both

hydrophillic.  The ethanol in the active ingredient, maybe a mixture of

60% ethanol 35% water 5% isopropanol ( to make it undrinkable, but safe

enough for topical use) would be better around  circuit boards.  It would

tend to dry the users' hands, but would not help to contaminate circuit

boards.



I've always found hand sanitizer superfluous, just washing ones hands with

soap and water kills most germs.





Karen Tellefsen - Electrical Testing

[log in to unmask]

908-791-3069







                                                                           

             Carl Proescholdt                                              

             <[log in to unmask]>                                             

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             04/27/2009 09:24                                      Subject 

             AM                        [TN] Hand Sanitizer and PCB         

                                       Assembly                            

                                                                           

             Please respond to                                             

              TechNet E-Mail                                               

                   Forum                                                   

             <[log in to unmask]>                                             

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             Carl Proescholdt                                              

             <[log in to unmask]>                                             

                                                                           

                                                                           









With the recent news cycle and the concern over the flu virus, several

people in the workforce have been asking if using a hand sanitizer such as

Purell brand would be acceptable to use.  From what I can see in the MSDS,

the main component is alcohol, but not all ingredients are listed.



I realize the best approach for actual board contact is a good hand washing

and gloves, but even if we put this stuff in the breakroom, and ask that

people wash and re-glove before returning to the production area, I am

afraid of contaminants reaching the production floor.  Also, if we don’t

provide something, I suspect people will start carrying it in and using it

themselves.  Has anyone else turned up anything to suggest that it wouldn't

be OK to use this type product in an assembly environment?   Any specific

brand recommendations?



If only we could just build boards...Happy Monday!



Carl Proescholdt

dca manufacturing corp






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