Re: NANFA-- ppt vs. specific gravity

Bob Bock (bockhouse_at_earthlink.net)
Sun, 29 Apr 2001 07:37:01 -0400

Sajjad, and Moon, thanks for your replies. So I take it that 6 ppt seawater
is equal to a dilution of almost 1/6 seawater, since 35/7 = 5.8333
repeating?
----- Original Message -----
From: "Sajjad Lateef" <sajjad_at_acm.org>
To: <nanfa_at_aquaria.net>
Sent: Saturday, April 28, 2001 11:44 PM
Subject: Re: NANFA-- ppt vs. specific gravity

>
> Forgot to add: temprature affects volume, and that affects
> density and specific gravity.
>
> Also suggest checking out:
> http://www.guilford.edu/original/academic/geology/Seawater.html
>
> On Sat, 28 Apr 2001, Sajjad Lateef wrote:
>
> >
> > 25 gms of NaCl in 1000 gms of sea water. Hmmm.
> > I was not so sure so I just searched and found:
> > http://www.seafriends.org.nz/oceano/seawater.htm
> > >From the above page, 3.5% salinity seawater contains about 3.0% NaCl
> > (30,200 ppm).
> >
> > Instruments are calibrated at standard temprature and pressure
> > (STP) usually 20C temprature and 1 Atmosphere pressure (68F temp,
> > sea-level pressure).
> >
> > Sajjad
> >
> > On Sat, 28 Apr 2001 Moontanman_at_aol.com wrote:
> >
> > > I didn't save those e-mails but I do know when you are talking
specific
> > > gravity or density, maybe both, temperature has a lot to do with the
result.
> > > And pure sea water (perfect world) should read 1.025 and pure water
should
> > > read 1.000 but only at the temperature the instrument was calibrated
at.
> > >
> > > Moon
>
>
>
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