Kinematic Viscosity

LABORATORY DIVISION

Kinematic viscosity

Our products

Kinematic Viscometer Types

CANNON-FENSKE

CANNON-FENSKE OPAQUE

ASTM D-445-446, ASTM D2515, ISO 3104-3105 and UNE 400313

Cannon-Fenske Opaque Viscometers (reverse flow type) are used for dark Newtonian liquids; especially suitable for liquids so dark in colour that cannot be seen in a Cannon-Fenske routine viscometer. Also used to study shearing stress and shearing rate. Sample volume: aprox. 12 ml. Precision: ±0.3%. Value indicated at 40ºC and 100ºC in both bulbs.

CANNON-FENSKE ROUTINE

ASTM D-445-446, ASTM D2515, ISO 3104-3105 and UNE 400313

Cannon-Fenske Routine Viscometers quickly and easily measure the viscosities of transparent Newtonian liquids. Sample volume: approx. 7 ml. Precision: ±0.2%. With constant value indication at +40 ºC and +100ºC.

All capillary viscometers are supplied with the calibration certificate issued in accordance with the conditions of accreditation granted by a National Metrological Register which has assessed the measurement capability of the laboratory, the test uncertainty and its traceability to recognized international standards UKAS.

BS/U-Tube & BS/IP/RF U-Tube

BS/U-Tube Viscometers for Transparent Liquids

BS/U-Tube Viscometers for Transparent Liquids

BS, ASTM D-445, D446, ISO 3104, ISO 3105 and UNE 400313

Made of borosilicate glass, and non-alterable timing marks. With constant value at 40ºC and 100ºC into the calibration certificate. Precision: ±0.2%.

BS/IP/RF U-Tube Reverse Flow Viscometers for Opaque Liquids

BS/IP/RF U-Tube Reverse Flow Viscometers for Opaque Liquids

BS-IP-RF, ASTM D-445, D446, ISO 3104, ISO 3105 and UNE 400313

Made of borosilicate glass, and non-alterable timing marks. With constant value at 40ºC and 100ºC into the calibration certificate.

Precision: ±0.3%.

UBBELOHDE (ASTM & DIN)

These FUNGILAB glass capillary viscometers allow measurement of viscosities using ASTM and DIN testing methods. All capillary viscometers are supplied with the calibration certificate issued in accordance with the conditions of accreditation granted by a National Metrological Register which has assessed the measurement capability of the laboratory, the test uncertainty and its traceability to recognized international standards UKAS.

UBBELOHDE ASTM (ASTM D445-446, ASTM D2515, ISO 3104-3105 and UNE 400313)

UBBELOHDE DIN (DIN 51562 Part 1, ISO 3105 and UNE 400313)

Ubbelohde Viscometers are used to determine kinematic viscosity of transparent

Newtonian liquids. Sample volume: approx. 15 ml.

Precision: ±0.2%.

* Fungilab offers many types of glass capillary viscometers that are not listed in our catalog. We can also manufacture glass capillary viscometers with customer-specified constants. Viscometers with special constants, added temps, and before/after data are available by special order.

For further information contact Fungilab.

Flow Cup

STANDARDS: ISO 2431, ASTM D-1200

Flow cup viscometers provide kinematic viscosity data. The measured kinematic viscosity is generally expressed in seconds (s) flow time when the fluid is flowing through an orifice at a specified temperature. Thanks to the conversion equations the viscosity is calculated from the flow time to centistokes (cSt). The calibration certificates are supplied with the cups.

According to the standards, there are several viscosity ranges available from 5 cSt.

Flow cups made of anodized aluminum body with a stainless steel orifice.

Ensuring the accuracy of the test results, FUNGILAB recommends a periodic calibration check. You can check the viscosity results using the standard oils specially manufactured for these kind of viscometers (available under request), or sending the instrument to our calibration laboratories.

Industries like paint, ink, varnishes and similar products use these very easy to use flow cups to quickly calculate the viscosity.

The cups can be supplied separately or with an adjustable stand that includes a precision level and an overflow glass draw plate.

The cups without handles can be supplied separately or with an adjustable stand that includes a precision level and an overflow glass draw plate.

ISO 2431 Flow Cup
ASTM D-1200 Flow Cup

Add in each model default option as the CALVISC software included which allows the client to calculate the viscosity of the sample just fulfilling the parameters in the software.

ISO 2431 Flow Cup Viscometers

ASTM D-1200 Flow Cup Viscometers (Ford Cup)

Hoppler Viscometer (Falling Ball)

Measures accurately the viscosity of transparent Newtonian liquids and gasses (with a special glass ball)

Main Features

High accuracy through improved visibility of the falling ball.
Minimized test time due to accurate return run of the ball.
Reduced cost of ownership through increased lifetime of falling tube.
Extended re-calibration periods through improved bearing support.

The Viscoball viscometer is mainly used for low viscosity substances such as used in:

Mineral oil industry (oils, liquid hydrocarbons, …).
Food industry (sugar solution, beer, milk, gelatine, fruit juice, …).
Chemical industry (polymer solutions, solvents, resin solutions, latex dispersions,
adhesive solutions, …).
Cosmetic/Pharmaceutical industry (raw materials, glycerine, emulsions, suspensions,
solutions, extracts, …).
Petroleum industry (light crude, machine oil, crude petroleum,…).
Fuels (petrol, diesel oil, paraffin, …).
Paper industry (emulsions, pigment dispersion, paper additives, …).
Paints and varnishes (printing inks, varnishes, water lacquers, inks,…).
Detergents (liquid washing agents, washing-up liquids, tenside solutions,…).

Measuring principle

The rolling and sliding movements of a ball through the sample liquid are timed in an inclined cylindrical measuring tube. The sample viscosity is correlated to the time the ball requires to travel a defined distance. By turning the measuring tube upside down again the return of the ball may also be used for an additional measurement applying the return constant. The test results are given as dynamic viscosity in the internationally standardized, absolute units of mPa·s.

Hoppler Viscometer (Falling Ball)

Accessories

Capillary Viscometer Precision Bath THERMOCAP

FOR CONTROLLABLE TEMPERATURES FROM AMB.+5 °C TO 100 °C.

Used for measurements with glass viscometers

Made for the calibration of viscometers according to the following standards UNE 400313, ISO 3105, ASTMD 445 and 2515

FEATURES

• Temperature sensor Pt100 thermo-resistor,
• Stainless steel AISI 304 lid
• Three viscometer locations port
• Three independent lids
• Location port for the control thermometer.

NOTE: The main body of the bath is made of a 20 liters borosilicate glass tank. A white plate is located at the back to help optimise and read the viscometers.

Thermocap

Today’s business world brings new challenges that demand innovative solutions. Fungilab’s aim, as a leading viscosity technology company, is to become an expertise partner in the viscosity world to offer you our best products and services.

To provide you and your customers with this necessary attention and an expertise support, Fungilab offers a wide range of products for the measuring of the kinematic viscosity of your products.

Our kinematic series include: the Höppler viscometer (falling ball), for the measurement of the low viscosity liquids in all industries; capillary viscometer series and baths, in accordance to ASTM and DIN methods, to obtain the most accurate viscosity of your liquids; and flow cup viscometers, suitable for paints, inks, varnishes and similar products.

Kinematic viscosity is a measure of a fluid’s resistance to flow under the influence of gravity. It’s defined as the ratio of the fluid’s dynamic (absolute) viscosity to its density. In other words, it describes how thick or thin a fluid is without the involvement of any external force except gravity.