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April 2009

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Subject:
From:
Werner Engelmaier /* <[log in to unmask]>
Reply To:
TechNet E-Mail Forum <[log in to unmask]>, [log in to unmask]
Date:
Tue, 28 Apr 2009 12:09:43 -0400
Content-Type:
text/plain
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text/plain (186 lines)
 Joe,
Microbes—they may outlive us as a species, but not individually.
Well, nowadays I always know that I am overseas, certainly visually but also olfactory [and I do not mean the cooking].
Werner


 


 

-----Original Message-----
From: Joe Fjelstad <[log in to unmask]>
To: [log in to unmask]
Sent: Tue, 28 Apr 2009 11:48 am
Subject: Re: [TN] Hand Sanitizer and PCB Assembly










I don't know Brian, we all often smelled pretty rank in Vietnam  (though 
some were worse than others) so the monsoons were a treat. That  said I am 
reminded of a reported anecdote of Ben Franklin in France when some  lady said 
to him "Mr. Franklin, you smell" to which he replied "No madam, I  stink, 
you smell" 
 
But I do agree that microbes have an important role to play. We cannot kill 
 them all and they will long outlast us.   
 
Joe 
 
 
In a message dated 4/28/2009 8:06:56 A.M. Pacific Daylight Time,  
[log in to unmask] writes:

I'm  of the opinion that over-cleanliness is as bad as, if not  worse 
than, under-cleanliness at a germ level. If your immune system is  not 
trained to the local strains of E. coli or salmonella, when you come  in 
contact with a few bacteria on the salad in a chic restaurant or  
elsewhere, you will get the full benefit of a day or two enthroned.  
Merde alors! You must have exposure to bugs to be healthy.

I  remember reading about an experiment during the Viet Nam war. A  
non-combatant unit 
was split into two equal groups of volunteers, one of  
which could shower as often as they liked, minimum daily, the other half  
could shower once every third day. The troops had to report every health  
abnormality, even minor, as well as those on sick parade. The "dirty"  
lot reported far fewer bo-bos and serious problems than the "clean" lot  
(can't remember the statistics, but they were quite significant). After  
a few weeks, the "dirty" lot no longer exhibited undue BO, either,  
showing that the skin flora causing fermentation in/around the sweat  
glands do not have a chance to be eliminated naturally with frequent  
washing. This was confirmed in the UK army: some units in hot climates  
had shower facilities once a week and BO was not a general problem  
(there were a few odd bods who were smelly from "nervous sweat", as  
opposed to honest-to-goodness hard labour sweat).

I think there is  probably an optimum balance which may vary between 
individuals, but there  is a tendency to go OTT with personal hygiene.

Brian

Ken  Bloomquist wrote:
> Hi Karen,
> 
> You wrote: "I've always  found hand sanitizer superfluous, just washing 
ones
> hands with soap  and water kills most germs."
> 
> I agree that in the work  environment you are probably correct but I think
> that hand sanitizers  with at least 60% alcohol are good when you are out 
in
> public and  can't readily wash your hands. I usually keep a small bottle 
in
> my car20 and an even smaller one in my pocket.
> 
> KennyB 
>  -----Original Message-----
> From: Karen Tellefsen  [mailto:[log in to unmask]] 
> Sent: Monday, April 27,  2009 6:43 AM
> To: [log in to unmask]
> Subject: Re: [TN] Hand  Sanitizer and PCB Assembly
> 
> 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
> 
>  
> 
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