Specific Gravity & Viscosity


Specific Gravity and Viscosity Measurements to NIST-Traceable Standards

For confidence in your readings, contact InnoCal. In our ISO17025-accredited lab, we calibrate new instruments as well as recalibrate existing assets for accuracy your can trust.

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Quickest Lead Times in the Industry for Hydrometer Calibrations

Example of InnoCal's industry leading certificates

Our environmentally-controlled laboratory houses extremely accurate standards for all brands of viscometers using only ISO Guide 25 accredited standard reference materials. Your viscometer will be tested at 25 degrees Celsius using the spindles of your choice with as-found and as-left data provided.

Hydrometers are tested according to your instructions or manufacturer’s recommendations. InnoCal is the only authorized calibration lab in the United States for ERTCO hydrometers. We test all types including Baume, Alcohol, API, ASTM, Brix, Sodium Chloride, Balling (Plato), Calcium Chloride, and Liquid Petroleum Gas hydrometers. We will also check the thermometer on your hydrometer, if applicable. Our fully-equipped hydrometers calibration lab has the quickest lead times in the industry—3 to 5 days without expediting!

Innocal’s partnership with Cole-Parmer allows you to purchase your equipment pre-calibrated and delivered to your facility with our certificate. This removes the expense, time, and hassle of sending it out to a lab for calibration. Your hydrometer or viscometer arrives with the NIST-traceable certificate and is ready to put into use immediately. Get a quote from InnoCal today.


Specific Gravity and Viscosity Equipment Serviced 


Rotational Viscometer


Falling Ball Viscometer

Falling Ball






Technical Details

InnoCal Scope of Accreditation to ISO/IEC 17025:2005 & ANSI/NCSL Z540-1-1994

Measurement Range
 Viscosity: 4.5 to 59940 cP
 Hydrometer: 0.64 to 2.00 specific gravity

Best Uncertainty: See scope of accreditation for details

Measurement Type: Comparison to ISO Guide 25 standard reference materials and hydrostatic weighing


NIST-Traceable Calibrations on the Top Brands!


HB Instruments

Vee-Gee Scientific

Fisher Scientific


Thermo Scientific









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