Need a calibration solution for your refractometer?

[DrHank]

Ok, so I don't even own a refractometer but many of you do. Here's a homemade calibration solution that you can make to calibrate your refractometers.

Reef Aquarium Salinity: Homemade Calibration Standards by Randy Holmes-Farley - Reefkeeping.com

Hope that it will be of some help to you folks.:whstlr:

 

[Melanie]

Thank you for this link (I read it from my chronicle when you posted it there as well.)

I don't have much faith in my own ability to make a perfect solution in a 2 liter bottle.

 

[DrHank]

Come on, I know that you can do it. Just take your time and make two batches. If you did them right, the reading should be the same.

 

[sasquatch]

be nice if I could buy that salt, lol ours is mined under Detroit and called Windsor salt, do you think it would be the same? Good article Doc, no advil required

 

[DrHank]

As long as it's only ingredients are sodium chloride and Iodine you should be fine. Just regular table salt.

 

[flricordia]

Thanks Doc. I will check against this formula while the depression moves in and I get bored from being cooped up this weekend.
My refractometer instructions are to calibrate with pure water to '0' which I used my RO/DI and it seems to be on there even after a year so I am anxious to check it agaist the salt formula. Thanks for the link.

 

[sasquatch]

do I have to drink the coke?