What is Cannon Fenske viscometer?

The Cannon-Fenske Opaque Viscometer measures kinematic viscosity of transparent and opaque Newtonian liquids according to ASTM D445, ISO 3104 and ASTM D2170. Minimum sample volume is 12 mL. Minimum bath depth is 230 mm (9 in). Special constant viscometers are available at additional cost.

What are the different types of viscometer?

Types of Viscometers

• ② Capillary Tube Viscometers. Kinematic viscosity is determined by passing the sample through a narrow tube and measuring the time it takes for the sample to pass through.
• ③ Falling Ball Viscometers.
• ④ Vibration Viscometers.
• ⑤ Viscosity Cup.

How do you use a Cannon Fenske viscometer?

To charge the sample into the viscometer, invert the instrument and apply suction to tube G, immersing tube A in the liquid sample, draw the liquid into the capillary F. Adjust the liquid to mark E, turn the instrument to its normal vertical position and wipe clean.

How do you calibrate a Cannon-Fenske viscometer?

Align the viscometer vertically in the bath by means of a small plumb bob in tube G, if a self-aligning holder is not used. RECOMMENDED VISCOSITY RANGES FOR THE CANNON-FENSKE ROUTINE VISCOMETERS 5. Allow approximately 10 minutes for the sample to come to the bath temperature at 40°C and 15 minutes at 100°C.

What is ASTM D445?

ASTM D445 describes the standard test method to measure the kinematic viscosity ν (ny) of petroleum products according to ASTM International (formerly “American Society for Testing and Materials”, since 2001 “ASTM International”).

What are the three standard types of efflux viscometer?

The saybolt viscometer, one of the efflux cup viscometers is the standard instrument for testing petroleum products. There are three types of orifices available-Universal, Furol, Asphalt.

What is cup and bob viscometer?

They measure the torque required to rotate a disk or bob in a fluid at a known speed. “Cup and bob” viscometers work by defining the exact volume of a sample to be sheared within a test cell; the torque required to achieve a certain rotational speed is measured and plotted.

Is cP kinematic or dynamic viscosity?

The most commonly used unit for dynamic viscosity is the CGS unit centipoise (cP), which is equivalent to 0.01 Poise (P).

What is Stabinger viscometer?

The SVM™ 3001 Stabinger Viscometer™ provides users with more parameters compared to all other existing kinematic viscometers. With a small sample volume and a single measuring cycle, the SVM™ 3001 can measure multiple parameters, including density, kinematic viscosity, dynamic viscosity, viscosity index and more.

What is calibration constant of viscometer?

In fact, we. recommend that glass capillary kinematic viscometers be calibrated at 25°C or 40°C, but not. at 100°C. An additional viscometer constant at 100°C can be calculated more accurately from. the 25°C or 40°C calibration than it can be measured at 100°C.

What is IP 71 I?

This International Standard gives specifications and operating instructions for glass capillary viscometers widely used for the determination of kinematic viscosity of petroleum products by the procedure described in IS0 3104.

What is Viscosity Index ASTM D2270?

ASTM D2270 – Calculating Viscosity Index from Kinematic Viscosity at 40 °C and 100 °C. 4.1 The viscosity index is a widely used and accepted measure of the variation in kinematic viscosity due to changes in the temperature of a petroleum product between 40 °C and 100 °C.

What is use of redwood viscometer?

A redwood viscometer is used to measure the flow of eight different liquids including engine oil, sunflower oil, soybean oil, glycerol, thermic fluid (Hy- therm), coconut oil, water and ghee. Kinematic viscosity is determined by redwood viscometer with help of its constants.

What is Ostwald viscometer?

Ostwald viscometer, also known as U-tube viscometer or capillary viscometer is a device used to measure the viscosity of the liquid with a known density.

What is a stormer viscometer?

Description. The stormer viscometer measures the viscosity of a fluid by measuring the time taken for an inner cylinder in the mechanism to perform a fixed number of revolutions in response to an actuating weight.

What is the difference between absolute and dynamic viscosity?

Dynamic viscosity (also known as absolute viscosity) is the measurement of the fluid’s internal resistance to flow while kinematic viscosity refers to the ratio of dynamic viscosity to density.

What is the difference between Centipoise and centistokes?

Centipoise = centistokes x specific gravity where specific gravity is assumed to be 0.8 (except for water). To find the exact cp of your fluid: cp = cSt x (weight per gallon x 0.120).

What is torque viscometer?

the torque measurement capability of a Brookfield Viscometer/Rheometer measured in dyneocm; designations such as LV, RV, HA or HB are used to define the Torque Range for a specific instrument. Torque % the amount of torque resistance measured by a rotating spindle immersed in a material.