ASTM & Petrochemical Glassware
ASTM D445,Viscometers
Cannon Fenske Routine, ASTM D446.
The most widely used type of viscometer in the petroleum industry. Requires a minimum bath depth of 8 inches and a sample of 7mL. Each viscometer has a permanent serial number and is supplied with a calibration certificate indicating the constant of that tube at 40°C and 100°C.
Cannon Fenske Opaque, ASTM D446
A popular reverse flow viscometer that has two separate timing bulbs allowing a check of results in the same test. Requires a minimum bath depth of 10 inches and a sample of 12mL. Each viscometer has a permanent serial number and is supplied with a calibration certificate indicating the constant of that tube at 40°C and 100°C.
Cannon Manning Vaccuum, ASTM D446
Used to measure absolute viscosity in poise of highly viscous materials. Requires 300mm Hg vacuum to be applied to small arm with timing bulb. Sample of approximately 7mL is needed. Supplied calibrated with certificate.
Asphalt Institute, ASTM D446
Similar to Cannon Manning Vacuum except a graduated capillary is used in place of two timing bulbs. Sample of approximatly 4 mL is needed. Supplied calibrated with certificate.
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