Hi Todd&Russ&Steve&Bev
Just a point when you've raised the 6 month screening (quite right) :
Few HR dept.s have the foresight of screening NEWCOMERS ; and occasionally
get company into serious poo when a fellow tramping for decades over silicon
valley with all of the chimneys for pigeon eradicating programs ;
(I don't believe my eyes here as I read all of this ;you guys have it way
too easy over there ; we have to have by law [not every buddy 's "aware" of
it , regional to councils as well] three stage filter [pre, HEPA , and
carbon to humanize bad breath of wave maintenance guys ; able to discharge,
optionally ; air back to room] ; finally gets overdosed !
And there goes this >six sigma< fellow in crime "personally" preferring
holes {which I'd understood} ; but in roof !!! ;
no wonder I get all stuffy trotting seminars round LA !!!
You guys work like middle aged England's industrial revolution :
Stuff the pigeons (literally) ; here comes the progress .
I understand theyr's etching on your prized 3pack duco and shitting down
Acropolis is not quite that nice ; still ;
I'm flabbergasted .
paul
> ----------
> From: Todd Vorpahl[SMTP:[log in to unmask]]
> Sent: Saturday, 13 March 1999 1:53
> To: [log in to unmask]
> Subject: Re: [TN] Solder Fumes
>
> <<File: pic24451.pcx>>
> We're familiar with the limits stated below. We've done lead testing for
> our
> operators at the wave solder machine (during full scale maintenance
> including
> cleaning of the solder pot, dross removal, etc.) and we consistently
> measure
> below the OSHA (and others) limit yet just above the OSHA Action Level.
> In this
> case, OSHA requires you to retest every 6 months until you successfully
> measure
> below the Action Level 2X, 7 days apart. It's a pain and a little
> expense, but
> you gotta do it.
>
> Todd
>
>
>
>
> (Embedded
> image moved Stephen Schiera <[log in to unmask]>
> to file: 03/12/99 09:27 AM
> pic24451.pcx)
>
>
>
>
> Please respond to "TechNet E-Mail Forum." <[log in to unmask]>; Please
> respond to
> Stephen Schiera <[log in to unmask]>
>
> To: [log in to unmask]
> cc: (bcc: Todd Vorpahl/DIL/Teradyne)
> Subject: Re: [TN] Solder Fumes
>
>
>
>
> Note: Some recipients have been dropped due to syntax errors.
> Please refer to the "$AdditionalHeaders" item for the complete headers.
>
>
>
> Ryan,
> There are OSHA limits to the amount of lead that a human can be exposed
> to.
>
> Here is the intro portion of the OSHA reg on lead:
> "29 CFR 1910.1025
> The Occupational Safety and Health Administration (OSHA) provides
> protection
> to workers from exposure to lead in the workplace. Elements of this OSHA
> standard include: exposure assessment and reduction, protective
> equipment,
> housekeeping and hygiene, medical surveillance, and employee information
> and
> training."
>
> Exposure Limits:
> OSHA Limit 0.05 mg/M3 (50mg/M3)
> OSHA Action Level 0.03 mg/M3 (30mg/M3)
> ACGIH TLV 0.05 mg/M3 (50mg/M3)
>
> An Industrial Hygiene study can be done to gage the employees exposure
> levels. This can be done by yourself with the right equipment, however it
> is best to bring in an IHS consultant. Many times your company's
> insurance
> carrier can provide this, sometimes at no cost.
>
> I have used fume extraction equipment on reflow systems and for dust
> collection on wavesolders during the de-drossing processes. You have to
> make sure that the extractors filters are checked regularly. In our case
> the extraction equipment use allowed us to eliminate the need for a
> respirator program for the wavesolder operators.
>
>
>
>
> > -----Original Message-----
> > From: Ryan Chase [mailto:[log in to unmask]]
> > Sent: Thursday, March 11, 1999 6:55 AM
> > Subject: Solder Fumes
> >
> >
> > This question may have been asked before but I searched through
> > the archives and I couldn't find anything.
> >
> > Does anyone know of any studies that have been done on the
> > effects of solder fumes on humans? long or short term.
> >
> > I am attempting to "quantify" the purchase of fume extraction
> > equipment.
> >
> > What I am asking is:
> >
> > What is harmful about solder fumes?
> > As far as I knew, as long as the temperatures stayed below
> > 1000 degrees that lead will not become airborne.
> >
> > Is there a government requirement (OHSA or WHMIS) that limits the
> > exposure to these fumes?
> >
> > I have already purchased and installed the extraction equipment,
> > now I guess I am trying to justify why I purchased the equipment.
> >
> > Any help is greatly appreciated.
> >
> > Regards,
> > Ryan Chase
> > -----------------------
> > Ryan Chase
> > Manufacturing Engineer
> > GE Harris
> > 403-214-4502
> > Fax 403-287-3107
> > [log in to unmask]
> >
>
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