Re: NANFA-- ppt vs. specific gravity

Sajjad Lateef (
Sat, 28 Apr 2001 22:33:30 -0500 (CDT)

Instruments are calibrated at standard temprature and pressure
(STP) usually 20C temprature and 1 Atmosphere pressure (68F temp,
sea-level pressure).


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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