Most things are labeled the largest component to the smallest by weight,
Such as eutectic alloy of 63% tin, 37% lead.
Oddly enough with that ratio by weight the number of atoms of each is equal.
One atom of lead to one of tin.
73
Bill wa4lav
At 07:19 PM 8/31/2012 +0000, Manfred Mornhinweg wrote:
Gene,
Unfortunately, I have occasionally seen "60/40" solder for
sale that, upon reading the SMALLER print, is 60Pb/40Sn.
I have never seen that. But of course, it might happen... We should be
aware though that anyone selling "60/40" solder that contains 60% lead is
a crook, because by long standing international standards the tin content
is ALWAYS given first! So a solder with 60% lead and 40% tin MUST be
labelled "40/60" and not "60/40".
That some hams don't know the difference between 40/60 and 60/40 solder is
another matter. It happened to me, when I was starting in electronics, at
age 12, and bought some 40/60 solder thinking it was the same as 60/40.
Manfred
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