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Steven Pace
February 13th 04, 10:09 PM
If my hydrometer is calibrated @ 75 degrees F and water temp. @ 78
degrees F what if any conversion is necessary in the reading? Thanx-
Steven
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CapFusion
February 13th 04, 11:37 PM
Steven.... Can you try this link
http://www.aquatext.com/tables/hyd23-28.htm
Maybe this will give you a better answer then I can.

CapFusion,...



"Steven Pace" > wrote in message
...
>
> If my hydrometer is calibrated @ 75 degrees F and water temp. @ 78
> degrees F what if any conversion is necessary in the reading? Thanx-
> Steven
> --
> -----------------------------------------------------
> Click here for Free Video!!
> http://www.gohip.com/free_video/
>
>
Steven Pace
February 14th 04, 04:35 PM
Thanx- Very useful- Steven
Boomer
February 17th 04, 05:12 PM
That chart is off by at least 1 ppt. That table is form a soils hydrometer, calibrated to
69 F A friend of mine made a calculator for us base on the empirical equation. Most
floating hydrometers in this hobby are calibrated to 75 F. The Tropic Marin is calibrated
to77 F. If it is a swinging arm hydrometer no calibration temp is needed just read it
direct.

http://www.wymag.org.uk/simon/salinityhr.htm

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Boomer

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"Steven Pace" > wrote in message ...
:
:
: Thanx- Very useful- Steven
:
CapFusion
February 17th 04, 05:31 PM
Thanks Boomer. I will recommend this on next reference.

CapFusion,...


"Boomer" > wrote in message
...
> That chart is off by at least 1 ppt. That table is form a soils
hydrometer, calibrated to
> 69 F A friend of mine made a calculator for us base on the empirical
equation. Most
> floating hydrometers in this hobby are calibrated to 75 F. The Tropic
Marin is calibrated
> to77 F. If it is a swinging arm hydrometer no calibration temp is needed
just read it
> direct.
>
> http://www.wymag.org.uk/simon/salinityhr.htm
>
> --
> Boomer
>
> Want to talk chemistry ? The Reef Chemistry Forum
> http://www.reefcentral.com/vbulletin/index.php
>
> Want to See More ?
> Please Join Our Growing Membership
> www.coralrealm.com
>
> If You See Me Running You Better Catch-Up
> "Steven Pace" > wrote in message
...
> :
> :
> : Thanx- Very useful- Steven
> :
>
>