refractometer calibration

Cal_stir · #1 05-10-2012, 08:33 PM

Yes, my refractometer came with 18 megaohm water(pure) for calibrating at 0, I compared that to my RODI and it was the same, I bought calibration fluid after reading (probably the same) an article and checked the calibration and yes it was correct. All 3 gave the same results, so now I can use my RODI water to check my calibration fluid.

Coralgurl · #2 05-10-2012, 09:49 PM

What is calibration fluid? Sounds like RO water in a fancy container with a pretty label for a stupid amount of $$$. Somebody always out to make a buck...lol Good to know this has been double checked, I always use RO water to check mine. Thanks for posting....

Nano · #3 05-10-2012, 09:54 PM

most LFS will calibrate for you.. Or so I have heard... mines over due to be calibrated, I'm sure my salinity is off by now

sphelps · #4 05-10-2012, 09:59 PM

Quote:

Originally Posted by Nano

most LFS will calibrate for you.. Or so I have heard... mines over due to be calibrated, I'm sure my salinity is off by now

Why bother? You got RO water?

Nano · #5 05-10-2012, 10:01 PM

yeah, not great RO though I dont trust it to be as accurate

sphelps · #6 05-10-2012, 10:09 PM

Quote:

Originally Posted by Nano

yeah, not great RO though I dont trust it to be as accurate

This is a point of the thread to eliminate the myths involved with refractometer calibration. Straight tap water reads zero on my refractometer, which was just proven accurate.

Nano · #7 05-10-2012, 10:18 PM

Quote:

Originally Posted by sphelps

This is a point of the thread to eliminate the myths involved with refractometer calibration. Straight tap water reads zero on my refractometer, which was just proven accurate.

really?
but water quality varies where ever you go, so personally wouldn't use tap water for my refractometer
especially considering the poor water quality we have in Wetaskiwin