Re: NANFA-- ppt vs. specific gravity

Sajjad Lateef (
Sat, 28 Apr 2001 22:44:47 -0500 (CDT)

Forgot to add: temprature affects volume, and that affects
density and specific gravity.

Also suggest checking out:

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:
> >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 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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