I just had two fillings repaired with mercury-silver amalgum. The dentist
said it is still by far the most durable filling you can get, which is why
it is still recommended over the white fillings for people who grind their
teeth at night. He went on to quote studies of huge numbers of dentists who
worked with liquid mercury all their life. The studies supported no
statistically significant health issues resulting from the mercury.
Jeff Condit
PS: I bought the top of the line cell phone 2 years ago. Now it is
obsolete and hard to even get a battery or charger. My cell phone company
is charging me the same whether or not I get a new phone and wants me to
throw it away. I think things like cell phones with planned obsolescence in
a year or so should be made with less lead, maybe 10% instead of 37%. I
think designs for which only a couple boards will ever be made should be
exempt. Maybe one way of regulating this would be a tax on the lead used in
each PCB, such as x$/gram. This would coerce high volume designs to use
less lead while not penalizing prototypes, low usage designs, etc. Anyway,
the way things are and the way I think things should be are two different
things.
----- Original Message -----
From: "Bagotronix Tech Support" <[EMAIL PROTECTED]>
To: "Brad Velander" <[EMAIL PROTECTED]>; "Open Topic Forum"
<[email protected]>
Sent: Thursday, June 30, 2005 12:01 PM
Subject: Re: [OT] Re: [PEDA] EU regs WAS: Finish: Matte tin vs ENIG ?
CRTs are also exempted from ROHS. And they contain several lbs. of lead
each! I guess there's no better x-ray shielding material than lead ;-)
Network infrastructure is exempted until 2010. I wonder why? ;-)
If they eliminate all sources of toxic waste and radiation, where are all
our future superheros going to come from? ;-)
Best regards,
Ivan Baggett
Bagotronix Inc.
website: www.bagotronix.com
Brad Velander wrote:
Ivan,
In your list of improvements to the world you left out the most important
detail that makes this legislation so totally ridiculous and ineffective
to it's core. Electronics products account for less than 0.5% of world
lead usage.
So the EU is restricting one of the smallest portions of lead usage they
could probably find while doing nothing or little about the largest
sources of lead in the environment, consumer and car batteries. At the
very least there should be a significant refundable consumer deposit on
batteries of all types to ensure that people are sufficiently motivated
to return spent batteries for proper disposal/recycling. Yeah it is not
perfect or desirable but at least it would probably have the greatest
single impact on lead getting into the free environment these days.
On your issue of the US giving away sovereignty. The answer is simple,
stay home! Imparting your regulations or lack thereof on others, is that
not infringing on their sovereignty? Be fair, you can neither impart your
beliefs on them nor they impart their beliefs on you without infringing
on other's but that is not sovereignty. Sovereignty is only within your
own borders, outside of your borders you have no sovereignty. That is the
key to the whole definition of sovereign, it is only within the realm of
your own borders. If you want to go international you have to play by
other's rules or rules that you have agreed to with all the other
players, just as you expect them to play by your rules if they want to
come and play in your sovereign territory. The lack of agreement between
international parties doesn't co-opt any of your sovereignty.
Sincerely,
Brad Velander
Senior PCB Designer
Northern Airborne Technology
1925 Kirschner Rd.,
Kelowna, BC, V1Y 4N7.
tel (250) 763-2329 ext. 225
fax (250) 762-3374
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