HI RUSS
READ INSERTS PLEASE
> ----------
> From: Russ[SMTP:[log in to unmask]]
> Sent: Tuesday, 16 March 1999 11:18
> To: [log in to unmask]
> Subject: Re: [TN] Solder Fumes
>
> Paul,
>
> In defense of my previous comments. My argument in favor of piping the
> "filtered" wavesolder exhaust outside of the building is that NO FILTER
> OR CARBON ABSORBER can make pure clean air out of your wavesolder
> exhaust or mine. To believe the government defined TLVs for this stuff
> is very naive. Just look how they lower the limit every few years. I
> don't think the lead is getting more toxic. Do you?
ACTUALLY THROUGH OXIDE (GONE THROUGH MOSSER GLASSWORKS I KNOW),
IT IS MORE TOXIC EVERY YEAR IN THE ACADEMICAL SENSE ; YES ; SLOWLY .
SORRY TO DISAGREE ON FILTERS :
THE >VALIDATED< FACT IS THROUGH HEPA FILTER THE AIR IS ACTUALLY
CLEANER PARTICLE WISE THAN 40'S JET STREAMS ;THAT IS :CLEAN ROOM AIR SPECS .
GAS SPECTRUM MAY BE A DIFFERENT MATTER ; BUT THE LEAD ISSUE 'S OUT OF
EQUATION .
> If you are not venting your treated and filtered exhausts outside of
> your building then you could be putting your employees health and safety
> at risk. Why put their health at the mercy of some maintenance
> technician and some vendor who sold you the system? OK so you checked,
> and the air passed the industrial hygienists air sample. Do you know
> exactly how long the filter will last?
DO . THE POINT IS IT'S SELF MONITORING AS WELL = IT SELF CHOKES AND REFLOW
SHUTS OFF .
> Do you have a continuous
> monitoring system?
YES ; THIS KEMPER, MERCEDES OF SUCKERS, 'S GOT ALL THE BELL'S & W'S .
YOU SHOULD HEAR THE 20 MHz SIREN !
> How do you know when the filter has been installed
> with the gasket seal on the wrong way?
DOES SOMEBODY DESIGN THIS WAY STILL ?
> How do you know that when you
> get laid off that the person who inherits your system will have your
> same value system?
RUSS THE LAID ISSUES PLEASE KEEP OF TECHNET ; THIS IS PRIME TIME
> I'm sorry but I don't believe the experts who tell
> me that .005% of a carcinogen is OK to breathe every day.
HMMM ; WHICH ONE SPECIFICALLY ? (NO CLEAN) ; WILLING TO LEARN
> Trying to portray us as pollution mongers is absurd.
TEASING STEVE ; STAY COOL
> Like most people, I
> drive to work every day.
ME TOO ; BEV PEDALS EVERY DAY AND I REALLY ENVY HIM ;
PRESUME HE PUT ON HIS NORDICS IN WINTER AND GLIDES IN TO WORK
> Unless you ride a bike or walk you are making
> a decision to pollute the environment. Now you must decide how much is
> too much. In everything we do at Six Sigma we go well beyond the
> regulations when it comes to protecting the environment.
>
> I'm sorry if our humor has been misunderstood. Please don't see it as a
> "don't care" attitude about the planet we live on.
HEY RUSS ; DID I REALLY SOUND SERIOUS ???
MY APOLOGY ; SEEMS MY CANADIAN (APPLIED&PRACTICAL) SENSE OF HUMOR STAYED
WITH ME FROM SURVIVALS OF THE FITTEST FROM CAMPUS DAYS .
> Regards, Russ Winslow
>
> Six Sigma
> 1940 Concourse Drive
> San Jose, CA 95131
>
>
> -----Original Message-----
> From: TechNet [mailto:[log in to unmask]]On Behalf Of Stephen R. Gregory
> Sent: Monday, March 15, 1999 11:16 AM
> To: [log in to unmask]
> Subject: Re: [TN] Solder Fumes
>
>
> In a message dated 3/15/99 8:37:29 AM Pacific Standard Time,
> [log in to unmask] writes:
>
> << 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>>
>
> Hi ya Paul!
>
> Flabbergasted are ya? Ya' shouldn't be...things aren't quite so bad
> as
> the picture you're painting of us...while there's room for improvement
> to be
> sure (don't get me started on MTBE's, California's way of dealing with
> the
> pollution of auto exhaust) we're not quite back in the middle ages. A
> lot of
> the things I was saying was meant quite "tongue in cheek" and not be
> taken
> literally.
>
> Here in the San Fransisco Bay Area we have a quite strict organanization
> called the Bay Area Air Quality Management District under which all of
> us
> printed circuit businesses answer to, and those that have dealt with
> BAAQMD
> know what I'm talking about when I say strict....
>
> The following is from Regulation 11 (Hazardous Pollutants)
> Rule 15 (Airborn Toxic Control Measure For Emissions of Toxic Metals
> From Non-
> Ferrous Metal Melting)
>
> The first part (a) goes through all the definitions, then it gets into
> the
> regulation:
>
> (b) Requirements: No person shall operate a non-ferrous metal melting
> furnace
> unless the facility is in compliance with all the requirements specified
> in
> subsections B1 through B3.
>
> The section that really applies to guys like us is:
>
> (B3) Fugitive Emission Control
>
> (a) No activity associated with metal melting at a facilty
> including furnace
> operation, casting, emission control system operation, and the storage,
> handling, transfer of any materials (except new sand) shall discharge
> into the
> air any air contaminate, other than uncombined water vapor, for a
> period
> aggregating more than three minutes in any hour which is:
> (i) Half as dark or darker in shade as that designated
> as number 1 on the
> Ringlemann Chart, as published by the United States Bureau
> of Mines, or
> (ii) Of such opacity as to obscure an observer's view to
> a degree equal to
> or greater than smoke as described in subsection B3, A(i) or
> 10% opacity.
>
> (b) Dust-forming material including, but not limited to, dross,
> ash, or feed
> material shall be stored in an enclosed storage area or stored in a
> manner
> which meets the requirements of subsection B3 (a).
>
> (c) Material collected by a particulate matter control system
> shall be
> discharged into closed containers or an enclosed system that is
> completely
> sealed to prevent any dust from getting out.
>
> (d) Surfaces that are subjected to vehicular or foot traffic
> shall be
> vacuumed, wet mpped, or otherwise maintained in accordance with a
> District-
> approved maintenance plan. The plan shall specify, at a minimum: the
> areas to
> be cleaned, the method to be used, the required frequency of the
> cleaning
> activities, and a method of documenting the completion of the required
> activities. The plan shall be designed and carried out in a way
> which will
> meet the requirements of B3 (a)
>
> (C) Exemptions
>
> 1) Small Quantity Exemptions.
>
> Facilities are exempt from subsections B1, B2, and B3 if they
> meet either of
> the following conditions:
>
> (a) Melt a total of no more than one ton per year of all
> metals, or
> (b) Melt no more than the listed quantities of any one
> of the specific
> metals listed in table 1.
>
>
> TABLE 1
>
> METAL
> EXEMPTION LIMIT (Tons per year)
>
> Pure Lead
> 400
> Hard Lead
> 200
> Aluminum Scrap
> 125
> Aluminum Ingot containing more
> 125
> than .004% cadmium or .002%
> arsenic
> Solder
> 100
> Zinc Scrap
> 30
> Copper or Copper based alloys
> 30
> containing more than .004% cadmium
> 0r .002% arsenic
> Type Metal (lead for linotype machines) 25
>
> So as you can see, by following the regulations there's a lot of us
> small guys
> exempt. Sorry things are so tough for you down under. I'm no
> environmental
> engineer, but do you really think all the regulations that you have to
> deal
> with are really necessary?
>
> I'm not going to try and debate that lead isn't a toxic compound, and if
> it
> were a perfect world there shouldn't be anything harmful to us humans
> anywhere, but sometimes regulations can be "overkill", just as I'm sure
> regulations can be ineffective sometimes. I'm just asking the questions
> of
> what is really prudent and neccesary?
>
> As far as you always being stuffed up down in LA, I'm pretty sure you
> can
> blame that on the weather patterns, the geography of the LA Basin, and
> cars.
> Not my reflow and wave exhaust...I wouldn't do that to ya' pardner!
>
> -Steve Gregory-
>
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