Re: formula

Wayed, 10 oz of water = 282 grams, yes if you then take your graduate at
zero it out and pour water to 282 grams it comes out to 10 oz.

convert ml to oz and oz to grams on the conversion site.
In my case oz to grams..........yes your only working with 100 points of
percents (could be 1000 if you want to use 01 of a percent, but that is more
than fine enough with grams. I suppose you could go for grains, but not
necessary.
I believe that when we all talk about "how much should one use" etc. we
should be using percents of the total volume when dealing with photographic
formulas. Do you agree or have a problem with that?
great site for me
Art

----- Original Message -----
From: "J. Wayde Allen" <wallen@lug.boulder.co.us>
To: "List: Carbon Printing" <carbon@opusis.com>
Sent: Wednesday, December 26, 2001 5:53 PM
Subject: Re: [Carbon] formula

> On Wed, 26 Dec 2001, Art Kerbs wrote:
>
> > When ever I see posted formulas, I see only the amounts of the
> > chemistries I believe that we should standerize, that we all put in
> > the percents. converting the water to grams and then a percent of what
> > we add. this well definitely be less confusing.
>
> In a sense we are already at this point:
>
> 1 ml of water is approximately equal to 1 gram of water
>
> Hmmm ... I did check out the conversion site you listed and am not sure
> exactly how you did this conversion? The problem is that the gram is a
> measure of mass and the milliliter is a measure of volume so there is not
> direct equivalence. This got me interested a bit in what you've got here
> and I started doing a bit of digging. First I checked your last posting
> <http://rmp.opusis.com/pipermail/carbon/2001-December/002781.html> that
> stated:
>
> 10 oz of water = 282 grams
>
> The NIST site <http://ts.nist.gov/ts/htdocs/230/235/appxc/$temp.htm#5c>
> gives the following relationships:
>
> 1 oz. (U.S.) = 29.573 ml => 10 oz (U.S.) = 295.73 ml
> 1 oz. (U.K.) = 28.412 ml => 10 oz (U.K.) = 284.12 ml
>
> In order to convert from milliliters to grams one really needs to look at
> the density of water, and the best table I've found so far is:
>
> http://www.geog.ouc.bc.ca/physgeog/contents/8a.html
>
> and this gives the density of water at 20 celsius to be 0.9982 g/cc so
> your 10 oz.'s of water should weigh in around 295.2 g (U.S. ounces) or
> 283.6 g (British ounces). In any case, it is probably worth noting the
> definition of a gram as given in my Websters New World Dictionary:
>
> "gram - The basic unit of weight in the metric system, equal to about
> 1/28 of an ounce: it was meant to be, and virtually is, the
> weight of one cubic centimeter of distilled water at 4
> Celsius."
>
> In any case, without more info I question your conversion factors. It
> looks like your conversion is consistently low which is a bit troublesome.
> Might be worth checking them out just to be sure. You are in the
> ballpark, and maybe are using a diffent temperature than what I've
> chosen. I really doubt that you've got an uncertainty to support four
> decimal places worth of accuracy though.
>
> > Dick's formula
> > 2000 ml water = 1917.28217 "grams"
> > 200 gm gel -- blooming at 250 = 10%
> > 200 sugar -- YUP! = 10% (if 200=grams)
> > 70 glycerine = 3.7% (if 70 = grams)
> > 200 pigment mix = 10% (if 200 = grams)
> >
> > I for one can not imagine how one can work with out converting to
> > percents. What am I missing? AK
>
> I don't know that you are missing anything. Don't think anyone said not
> to use percent, but to be careful providing information about the
> ingredient to which you are referencing. Percent is just a fraction
> normalized to 100. It makes it convenient to compare relative amounts.
> You should use what is the most convenient and reasonable method to
> compare your data. Of course that means that enough information has to be
> provided to do the comparison you want to do.
>
> - Wayde
> (wallen@lug.boulder.co.us)
>
> --------------------------------------------------------
> ISART 2002
> International Symposium on Advanced Radio Technologies
> http://www.its.bldrdoc.gov/meetings/art/index.html
> --------------------------------------------------------
>
>
>
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Received on Wed Dec 26 18:50:50 2001