From: Jack Brubaker (jack@jackbrubaker.com)
Date: 07/27/03-01:58:44 PM Z
I racall seeing in industrial painting supply catalogs a "viscosity gauge"
or some such name. As I racall it looked like a funnel with a small opening
at the bottom that was filled to a certain level and one measured how long
it took to drain.
Jack
> From: Katharine Thayer <kthayer@pacifier.com>
> Reply-To: alt-photo-process-l@skyway.usask.ca
> Date: Sun, 27 Jul 2003 06:57:38 +0000
> To: alt-photo-process-l@skyway.usask.ca
> Subject: Re: Dry Dichromate and Gum, was Re: News from APIS
>
> Stuart W Melvin wrote:
>>
>> Hey Sam,
>>
>> I'm wondering if you might be able to elaborate on the viscosity of the gum
>> solution you use. Have you ever measured it with a baume meter?
>
> Sorry to jump in here, but just thought I'd interject the comment that
> you're making the same mistake I'd been making all my life until a
> couple of weeks ago, when Gordon enlightened me. A baume meter
> (hydrometer) measures specific gravity, not viscosity, and what's more,
> the two are not related to each other. This information came to me like
> the apple falling on Newton's head, and this is why I asked the other
> day the speculative question about differences in viscosities between
> gums. I don't know if any of us has the equipment to answer this
> question; if someone does I'd sure like to know about it.
> Katharine
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