Cannon Instrument Company® is a global leader in the manufacture and support of high-precision instrumentation for viscosity and other physical property testing. Our products meet or exceed ASTM, AASHTO, and SAE J300 regulatory standards. CANNON® products include manual and automated viscometers, oil standards, constant temperature baths, and more. We partner with Tanaka, Eralytics, and GreenLab to offer instruments for density, flash point, moisture, and distillation, and demulsification. Services include plans for instrument calibration & preventative maintenance, lab testing, and custom formulations.