"Roy Lewallen" wrote in message
...

For a very long
time I've used 63/37, which is eutectic. This means it has the lowest
melting point temperature for that combination of metals, but more
importantly, it has no plastic state. It goes abruptly from liquid
directly to solid as it cools.

I have some of this and grab it occasionally. It _seems_ that it does not
flow quite so readily as the 60/40. This may be my imagination or perhaps
an issue of external flux being needed. Comments?

Sal M. Onella wrote:
"Roy Lewallen" wrote in message
...

For a very long
time I've used 63/37, which is eutectic. This means it has the lowest
melting point temperature for that combination of metals, but more
importantly, it has no plastic state. It goes abruptly from liquid
directly to solid as it cools.

I have some of this and grab it occasionally. It _seems_ that it does not
flow quite so readily as the 60/40. This may be my imagination or perhaps
an issue of external flux being needed. Comments?

Sounds to me like your 63/37 might contain a less activated flux.
There's a lot of variation among fluxes.

Roy Lewallen, W7EL

" =========
Does the above mean that all CE labeled equipment put on market after July
2006 has been constructed with Lead free solder ? Also for example
equipment from outside the EU , like American made TenTec equipment (now
CE approved), because it would be a requirement for CE labeling , or has
this type of labeling nothing to do with actual construction methods ?

Yes, in order to put the CE mark on equipment it must meet all of the EU
requirements for that type of product.

Jeff

Highland Ham wrote:
The main reason is to support the continued use of tin/lead solder for
repairs to existing tin/lead soldered equipment. This also ensures a
continuing supply for home construction, which is specifically
excluded from the RoHS regulations:
http://ec.europa.eu/environment/waste/pdf/faq_weee.pdf
(see question 1.15).
An amateur constructor is only *required* to use lead-free solder
when repairing a product that was put on the market after July 2006,
and was therefore 'born lead-free'.
=========
Does the above mean that all CE labeled equipment put on market after
July 2006 has been constructed with Lead free solder ?

What we can say is that all equipment put on the market in the EU since
July 2006 *should* contain no lead or any of the other banned substances
(eg hexavalent chromium used for metal passivation).

The CE label attests that the product meets all relevant standards, but
I don't know absolutely for certain if that now includes RoHS
compliance. (We might imagine it would be, or should be - but that can
often be a trap. The only thing that counts is what the regulations
actually DO SAY.)


Also for example equipment from outside the EU , like American made
TenTec equipment (now CE approved), because it would be a requirement
for CE labeling , or has this type of labeling nothing to do with
actual construction methods ?

As I said, I'm not sure. You'd have to ask the manufacturer.

(Officially there is no such category as "CE approved" - it's another
one of those imagined things.)


--

73 from Ian GM3SEK 'In Practice' columnist for RadCom (RSGB)
http://www.ifwtech.co.uk/g3sek

Thanks to all for the many replies

Cheers,

Nick

"Does the above mean that all CE labeled equipment put on market after
July 2006 has been constructed with Lead free solder ?

What we can say is that all equipment put on the market in the EU since
July 2006 *should* contain no lead or any of the other banned substances
(eg hexavalent chromium used for metal passivation).

The CE label attests that the product meets all relevant standards, but I
don't know absolutely for certain if that now includes RoHS compliance.
(We might imagine it would be, or should be - but that can often be a
trap. The only thing that counts is what the regulations actually DO SAY.)


Also for example equipment from outside the EU , like American made TenTec
equipment (now CE approved), because it would be a requirement for CE
labeling , or has this type of labeling nothing to do with actual
construction methods ?

As I said, I'm not sure. You'd have to ask the manufacturer.

(Officially there is no such category as "CE approved" - it's another one
of those imagined things.)


Our club certainly had to wait for the delivery of a Kantronics tnc whist
they re-worked it to meet RoHS, before they could CE mark it and get it into
the EU.

73
Jeff