I must confess that my knowledge of the French language is limited to "au resevoir"
and "bone du jour"; but I have this sneaking suspicion that the amusing little
aphorism "avoir du plomb dans la tête" is more likely a consequence of the density of
lead and the weight of lead objects than the impact of lead on human health, which
was probably only discovered many years after the phrase was coined.
Chuck Dolci
Pascal Guiheneuf wrote:
> In france we have a popular expression "avoir du plomb dans la tete", maybe
> translated by "having lead in head". Coming from the "lead poisoning"
> disease, it describes somebody stupid. Lead is hazardous, and especially for
> children. It attacks the brain.
>
> In 1973, lead was banned from gazoline, in 1978 from paints, beginning of
> XXI century from all water pipes (they have to be changed before 2010 or
> something like that in Europe), now it is time for electronics.
>
> Lead has to be removed, and solutions to issues will be found by people with
> functioning brain.
>
> Cordially,
>
> Pascal
>
>
> -----Original Message-----
> From: John Burke [mailto:[log in to unmask]]
> Sent: vendredi 2 juillet 2004 19:04
> To: [log in to unmask]
> Subject: Re: [LF] tin pest
>
>
> Wouldn't that be a story:
>
> "A team of Antarctic researchers investigating effects of electronics
> manufacturing on the ozone layer were stranded today when their GPS system
> malfunctioned. The malfunction is thought to be associated with the removal
> of lead from the solder"..................8-)
>
> John
>
> -----Original Message-----
> From: MA/NY DDave [mailto:[log in to unmask]]
> Sent: Friday, July 02, 2004 9:37 AM
> To: [log in to unmask]
> Subject: Re: [LF] tin pest
>
>
> Hi Jim, Tyco-Bob, Jean-Paul, and IPC LF Listservers,
>
> <Thank you for your response. Like many other issues in this Lead-Free
> transition, it sounds as if "tin pest" has been overblown.>
>
> I am not sure YET that the issue is overblown. I believe that based on the
> environments of certain products or certain product life conditions that we
> may see this selectively in real life applications. In June Tin's KayN
> (Soldertec) did respond to us that ITRI has not seen any effect and
> privately others have also written to me that they have yet to see any
> effect.
>
> My first guess is product that has to survive continual cold temperatures
> like in the Artic or in refrigerator/freezers where -40C/-40F is common or
> in other applications like thermoelectric coolers.
>
> As for a nucleation site for the transformation to get started, I am less
> clear of how that all happens. More Study, or the Luck of being an IPC LF
> Listserver is needed.
>
> If you look at the UK's Open University Report it seems obvious that we will
> see this under certain conditions. The sample just had too too much Tin Pest
> to be a coincidence.
>
>
> Yours in Engineering, Dave
> Y i Engr, MA/NY DDave
>
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