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Re: [ATM] Cold pitch

On Sun, 25 Feb 2007, Mel Bartels wrote:

> > Mel,
> > I hate to disagree with you, but Gugolz pitch is graded by it's Melting
> > point.
>
>
> You're right - I'm wrong - thanks for pointing out my error.
>
> Mel Bartels

Errr uhhh.... sorry, but I seem to recall a value that was a bit more
complicated. Long ago when I had contact with Gugolz I was told of
a test that was more like a vitrification test. There is a plunger
or some such (I've never seen it) that is held in some position
and the temperature at which the plunger fell under its own weight
was the measure. Surely this is in the archives?


Dominic

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