Soap is the sodium salt of fatty acids, there may be several similar fatty
acids in any given commercial soap, maybe a little extra fat, maybe tiny
bit of perfume and pigment. The glycerin is usually removed. It's the
fatty acid anions that do the work of removing soils, including lead.
Karen Tellefsen - Electrical Testing
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Re: [TN] Hand Wipes and Lead Residues
David D. Hillman
to:
TechNet
01/12/2012
03:20 PM
Sent by:
TechNet <[log in to unmask]>
Please respond to TechNet E-Mail Forum, ddhillma
Hi Doug - whomever said we learned everything we needed to know in life in
kindergarten was correct - including using soap when we wash our hands!
There are oodles (aka many) things in soaps that lead loves to grab onto
and make stable compounds. If people follow the prescribed practices for
correctly handling solder/lead and use proper hand washing practices,
then the need to hand wipes is not necessary.
Dave
crackerjack metallurgist presently hiding in Buffalo NY airport terminal
Douglas Pauls <[log in to unmask]>
Sent by: TechNet <[log in to unmask]>
01/12/2012 10:03 AM
Please respond to
TechNet E-Mail Forum <[log in to unmask]>; Please respond to
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Subject
[TN] Hand Wipes and Lead Residues
Good morning all,
I just had a chat with one of our ES&H engineers, a very pleasent young
lady, on the topic of hand wipes and lead residues. Was I aware of any
industry studies on the efficiency of hand wipes marketed at removing lead
residues, presumably from contact with cored wire solder? I was not aware
of any. I am always instantly suspicious of ANYTHING that marketers
touch. I am of the opinion that good old fashioned hand washing with soap
and water is as effective as anything, but there are areas here where we
are pretty sure our operators go straight from the bench to lunch without
that step.
So, I turn to my favorite source of information.
1. Are you aware of any industrial hygiene studies regarding
transferrence of lead to the hand, and/or the efficiency of "lead removal
wipes" in removing residues.
2. In your facilities, do you use these kinds of wipes?
3. If not, what measures do you normally use for operators cleaning hands
to remove potentially harmful material?
I will probably discuss this with our crackerjack metallurgist when he
returns from travel tomorrow, but thought I would ask in the mean time.
Doug Pauls
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