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Ian Field Ian Field is offline
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Default Poxy lead-free solder (again) ...



"Arfa Daily" wrote in message
...


"Rod Speed" wrote in message
...
Ian Field wrote
tm wrote
William Sommerwerck wrote


The ROHS rationale was to protect the health of folks doing
recycling.


That's only part of it. It's supposedly true that rain (and other
solvents)
leech lead from electronic equipment, and it winds up in drinking
water.


Therein lies an example of why we have the RoHS BS.


But lead was mined out of the ground in the first place!


But not much of the drinking water comes from where its mined.

Not that I think it makes any sense at all to ban lead in solder.


Much drinking water in the UK was, and continues to be, supplied via lead
pipes, and not all areas have 'hard' water supplies that coat the inside
of those pipes with a 'protective' limescale layer.

The whole 'lead in the environment' argument makes little sense, apart
from in a few special cases like lead in gasoline and paint. Certainly,
lead in solder posed no threat at all, and removing it has, in my opinion,
been a disastrous retrograde step for the 'green' movement in general, and
the electronics construction and servicing industries in particular. Using
the stuff leads to increased production costs and energy budgets, and
often shorter product lives than would otherwise have been the case when
the mature and reliable technology of leaded solder was used.

Arfa


Compared to raw lead, lead/tin alloy is relatively stable, making solder was
actually binding a hazardous substance and effectively isolating it from the
environment.