About Us

Since its founding in 1938 by scientist, inventor and educator Dr. Michael R. Cannon, CANNON® Instrument Company has earned international acclaim for the quality of its viscosity-related products and services. The company's longstanding emphasis on production of premiere-quality test equipment has kept CANNON® at the cutting edge of research and development for viscosity instrumentation serving a variety of industries.

Customer Satisfaction

Our staff maintains professional contact with industry experts in the fields of petroleum and petrochemicals, polymers, asphalt and paving, and many other areas. We also maintain a presence at national and international conferences and exhibitions serving our customers. Our quality processes and our company quality statement emphasize our ongoing commitment to customer satisfaction.


Products Limited Warranty


Reagent and Chemical Warranty


Cannon's Quality Policy

Working as a team, along with customers and suppliers, we will ensure quality and pride in our products and services through our positive attitude, commitment and experience.

ASTM Precision

Our precision instruments are designed to meet and exceed specifications required by organizations including ASTM, the Society of Automotive Engineers (SAE), and the American Association of State Highway Transportation Officials (AASHTO). Our ongoing international development efforts have resulted in CE certification for a number of our products.

Glass Capillary Viscometer Calibration

Our CANNON® trademark glass capillary viscometers are individually calibrated using the master viscometer calibration technique developed by Dr. Cannon. All calibrations are double-checked using two CANNON® viscosity standards. A certificate of calibration containing all data is supplied with each viscometer. All CANNON®-certified calibrations are traceable to the National Institute of Standards and Technology (NIST).

ISO 9001:2000 Registration/Certification

CANNON®'s testing laboratory is ISO 9001:2000 certified through Underwriters Laboratories.

CANNON® Instrument Company is ISO 9001:2000 registered with respect to the following products and services:

3823 (US): Industrial Instruments for Measurement, Display, and Control of Process Variable; and Related Products.

The manufacture and certification of viscosity standards and the viscosity certification of customer-supplied materials.

The provision of calibration services for viscometer and kinematic viscosity thermometers.

Click here to view a copy of our ISO-9001:2000 certificate.

A2LA Accreditation

A2LA has accredited CANNON® for technical competence in the field of calibration (certificate number 1262.01). The accreditation covers the calibration of glass capillary and cup viscometers, the determination of kinematic and dynamic viscosity (including that of viscosity standards and the viscosity certification of customer samples), and the provision of calibration services for viscometers and kinematic viscosity thermometers in accordance with ISO/IEC 17025-1999.

Click here to view a copy of our A2LA accreditation scope.

CE Mark Certification

CANNON® currently has been granted CE mark certification for several instruments. These instruments are indicated with the “CE” designation. We are actively pursuing CE mark certification for additional products. Please contact CANNON® Instrument Company if you have questions regarding the CE mark status of any CANNON® product.

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