Swede
Hazard to Others
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Registered: 4-9-2008
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hydrometer scales
My friends at APC didn't answer this one; I'm sure someone here can do it: BTW, I am very embarrassed that I don't know what it is. I did search
google a bit with no luck.
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I can't understand one of the two scales on my hydrometer! Checking some acids with a hydrometer, and the acid came in at 1.35 SG. There is a second
scale, parallel to the first, which read 1320. WTF? What's the second scale? On the instrument itself, at SG = 1.00, the mystery scale reads 1000. At
1.24, its 1200; 1.54, 1600. At 1.70 SG, the second scale is 1950. I surrender... what is the second scale?
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Can anyone identify the second, "mystery" scale on this hydrometer?
[Edited on 11-12-2008 by Swede]
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hissingnoise
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It's a long-shot, but would the second scale measure density at a slightly higher temperature.
My hydrometer (alas) has only one scale.
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Ozone
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A simple list of the various scales is given here:
http://www.sizes.com/units/hydrometer.htm
My guess is that your mystery unit is kg/m3.
Cheers,
O3
[Edited on 11-12-2008 by Ozone]
-Anyone who never made a mistake never tried anything new.
--Albert Einstein
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Saerynide
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Hmmm... Plain kg/m3 doesnt make sense. At 1.7 sg, that would be 1700 kg/m3...
Perhaps it is at a higher temp AND in kg/m3 
[Edited on 12/12/2008 by Saerynide]
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