Reef Chemistry Question of the Day #27 ‰

[Randy Holmes-Farley]

Reef Chemistry Question of the Day #27

On a refractometer, the symbol ‰ has what meaning?

A. ppt
B. ppm
C. Specific gravity
D. Refractive index
E. Automatic Temperature Control
F. Wavelength
G. Seawater
H. Relative Permittivity


Good luck!















.

 

[leptang]

A. pounds per thousand

 

[zemuss]

A. Ppt

 

[kschweer]

A. Ppt

 

[cope413]

It should mean "uhhhh, my head just exploded" because obviously you can't divide 0 by infinity.

 

[Randy Holmes-Farley]

It should mean "uhhhh, my head just exploded" because obviously you can't divide 0 by infinity.

No problem. This will clarify things, I'm sure:

 

[cope413]

That I actually don't mind, but the first time you post a non-euclidian geometry question, I'm unsubscribing.

 

[Randy Holmes-Farley]

That I actually don't mind, but the first time you post a non-euclidian geometry question, I'm unsubscribing.

Well, that doesn't come up very often in chemistry.

 

[zemuss]

well this thread got all nerdy i love it!

 

[Randy Holmes-Farley]

Very good responses to this one!

The answer is A.

% is parts per hundred (pph or percent)
‰ is parts per thousand (ppt)

Happy Reefing.