Ted Frater wrote:

So what is it? ,

By weight?
or
By volume?

ted.

Alloy calculations are always given in weight never by volume.

There is a very simple reason for that. Weight can very easily be
determined simply by using a scale. This is also very accurate.

Volume is much harder to determine, since one would have to use methods
like water displacements. And even then this is much less accurate then
weighing on a scale. Especially when quantities are small.

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Abrasha
http://www.abrasha.com