Text 29334, 71 rader
Skriven 2012-05-31 16:45:52 av Richard Webb (1:116/901.0)
  Kommentar till text 29321 av Robert Bashe (2:2448/44)
Ärende: Dutch parliament officially rejects ACTA
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HEllo Bob,

On Thu 2012-May-31 16:10, Robert Bashe (2:2448/44) wrote to Richard Webb:

<snip>
RW> To wit, lead free solder. Bad idea!  LEss reliable electronics
RW> because the eu wants lead free solder.

RB> How true. There have been some problems with IBM/Lenovo Thinkpad
RB> motherboards because of this... some BGA (Ball Grid Array) graphics
RB> chips have failed because the connections (with brittle lead-free
RB> solder) break over time with flexing. And it's as good as impossible
RB> to repair such defects (at least economically). Another problem is
RB> the high melting temperature compared with lead-tin solder. It's not
RB> easy to work with - and is more expensive to boot.

True, and where they do the automated processing the lead
free stuff even adulterates and degrades the performance of
traditional solder if used for an exempt product.  YEs there are some
exemptions, but too few imho.

RB> I often wonder if the EU bigwigs figure children chew things like
RB> motherboards for fun and can get lead poisoning that way... as a
RB> chemist with a fair knowledge of toxicology, I can't really
RB> understand the hysteria about the metal (in contrast to the chemical
RB> compounds, in particular organometallic compounds) and think most of
RB> it is due to simple ignorance.

Indeed, we're doing the boo hoo about people in third world
countries who do various things which are dangerous to
"recycle" our throwaway electronics i gather. YEs I can
understand the requirement for lead free paint in buildings, etc. but come on
people, enough stupidity and nanny state
already!

RB> The same thing goes for mercury, I might add. No problem if you
RB> swallow the metal, it just goes through your system. But the vapors
RB> can bind to your lungs (although not serious at really low levels,
RB> like when a thermometer breaks) and the organometallic compounds are
RB> dangerous when ingested (remember Minimata disease = poisoning due
RB> to ingestion of methylmercury)?

Yep.  I sure do.

RB> I worked with mercury metal often enough as a chemist (much more
RB> than anyone outside a chemical lab) and am neither dead nor suffer
RB> heavy metal poisoning to date.

Probably not, but we're trying to protect people from their
own utter stupidity remember.

RB> But hystera speaks louder than calm consideration. That's the world
RB> we live in. 

Yes, we do, and i get tired of the nanny state doing the boo hoo because we
have to try to compensate for stupidity.  IF
you're that stupid as to chew on a motherboard maybe we
don't need you walkin' around breathing.  Please let those
of us who are smarter have the food water and oxygen you
consume.

I'm kind of like the comedian talking about the deseccant
packaged with your electronics, on the little package it
says 'do not eat."  I wonder who thinks that when they
bought a new tv set the manufacturer provided them a snack
with it.  <rotflmao!!!>

Regards,
           Richard
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 * Origin:  (1:116/901)