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December 2006

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Subject:
From:
"Ingemar Hernefjord (KC/EMW)" <[log in to unmask]>
Reply To:
TechNet E-Mail Forum <[log in to unmask]>, Ingemar Hernefjord (KC/EMW)
Date:
Fri, 8 Dec 2006 15:19:52 +0100
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I doubt the results from these investigations. E.g. This  one: 

Lead 6.2988 3.8 5% Metal joining, radiation shield/CRT, PWB 

Is really 6.2 percent of a typical homeputer Lead? And is the recycling
of Lead only 5 % ??



Tin 1.0078 0.6 70% Metal joining/PWB, CRT 

Is Tin really only 1% of the computer weight while Lead is 6%, and why
is the recycling of Tin efficiency 70 % when  Lead is only 5% ?



Copper 6.9287 4.2 90%  Conductivity/CRT, PWB, connectors 

Same with Copper, which has 90% recycling efficiency.



Gold 0.0016 <0.1 99% Connectivity, conductivity/PWB, connectors 

And Gold with 99% recycling efficiency!!! 


I have a feeling, that such reports are 'one-eyed', am I thinking wrong?
(I wood nearly use the word 'manipulated', but hesitated...).  Is the
extremly low recycling efficiency of Lead the reason for banning Lead?
Or, vice versa, if Lead recycling efficiency had been same as for Tin,
then had Lead banning never been actual?

Not against the LF wave, but want know what is true and reliable.

http://www.sclf.ca/hazards.php


Inge
SMW

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