Item Description: 3.6ml Vial of 53.0mS Salinity Refractometer Calibration Fluid (Conductivity Standard)

THIS IS THE BEST WAY TO CALIBRATE YOUR SALINITY REFRACTOMETERS! NO MATTER WHICH UNIT YOU HAVE OR WHERE IT CAME FROM, THIS FLUID WILL HELP YOU GET THE MOST OUT OF YOUR REFRACTOMETER!
Specifications:
Conductivity: 53.0 mS
Salt Water Specific Gravity: 1.0264 SG
Salinity in PPT: 35PPT
Refractive Index @ 25'C:1.3394 RI@ 25°C
Appearance and color: Clear Liquid Package: Comes in an amber glass vial with a plastic applicator rod in the cap for easy dispensing

COMMON QUESTIONS:Why do I need this fluid? - Simply put, it will calibrate your Salinity Refractometer in the middle of the usual salt water marine environment range. Calibrating it to 0PPT/1.000SG with distilled water, r/o water, etc., make that point the most accurate, while the further points are gradually less accurate. The theory behind this fluid is that by calibrating the unit at the middle of the salt water environment range, you are creating the most accurate point (the point of calibration) nearest to your test samples. If you have very sensitive marine life, then this fluid is for you!

How do I use this fluid? - Place a drop or two of the fluid onto the prism of your Salinity Refractometer and it should read 35PPT/1.0264SG. If not, adjust your calibration screw on your Refractometer. Store with the lid on tight in a dark and dry environment immoderate temperature (near room temp).

Shipping Domestic S&H is $5.00 for (1) Vial, and an extra $1.00 per extra Vial. For international shipments is is $12.00 ($10.00 to Canada)Air Mail via USPS (4-7 business days) and $1.00 for each additional Vial.

National Industrial Supply
30777 Rancho California #891420
Temecula, CA 92589, USA
Sales: 951.308.9269
Fax: 310.733.5480
E-mail: nisupply at gmail dot com

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