Cannon 9721-F74 CFOC- 400 Calibrated

Cannon 9721-F74 CFOC- 400 Calibrated

The Cannon 9721-F74 CFOC- 400 Calibrated is a precision Cannon-Fenske Opaque Viscometer designed to measure the kinematic viscosity of dark Newtonian liquids. Specifically, this reverse-flow viscometer is used when the liquid meniscus cannot be observed at the timing marks. Therefore, it is ideal for samples that cannot be measured using routine-type viscometers. Moreover, the instrument complies with ASTM D445, ASTM D446, ISO 3104, and ISO 3105, ensuring reliable and standardized viscosity measurements.

Product Features

First, the reverse-flow design enables accurate viscosity measurement for opaque liquids. In addition, the viscometer is suitable for testing liquid cutback asphalts and road oils at 60 °C (140 °F). Consequently, it meets the requirements of ASTM D2170. Furthermore, it is widely used to study lubricating and hydraulic oils at low temperatures. In particular, it supports investigations on the effects of additives on oil performance. Meanwhile, external pressure can be applied to adjust shear stress and shear rate. As a result, the viscometer supports advanced rheological analysis. Each unit is factory calibrated and supplied with a certificate of calibration and an instruction sheet, thereby supporting traceable and repeatable testing.

Specifications

The viscometer requires a minimum sample volume of 12 mL. Additionally, a minimum bath depth of 229 mm (9 in) is required for proper operation. The instrument is calibrated at 40 °C. Moreover, it has an approximate constant of 1.2 cSt/s. Consequently, it covers a viscosity range of 240 to 1200 cSt. This range corresponds to flow times between 200 and 1000 seconds. Expanded uncertainty information is available for detailed documentation. Viscometers with special constants can also be supplied upon request. However, the holder is sold separately. Compatible holders include 9726-M50 and 9726-M53. Replacement micro stoppers are available as 9726-N98.

Applications

Therefore, this viscometer is suitable for asphalt and petroleum testing laboratories. In addition, it is used in lubricant formulation and additive research. Moreover, it supports hydraulic oil analysis and quality control testing. In particular, it is recommended for dark or opaque fluids tested under international standards.