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LAUDA Glass capillary viscometers

Viscosity measuring with Ubbelohde, Cannon-Fenske and Micro-Ostwald capillary viscometers

Accurate and standard-compliant.

Glass capillary viscometers are available in various designs, which differ with respect to application area, accuracy and operation. As of now, they can be supplied by LAUDA in the Ubbelohde, Cannon-Fenske, Micro-Ostwald and special designs. For high-precision, automatic measuring, the Ubbelohde version with the suspended level is used by preference, among other reasons because the flow time is independent of the precise sample volume.

To keep the measuring times within the optimum range between approx. 60 and 600 s, different capillary diameters are supplied to cover the complete viscosity range. The procedure, particularly with automatic LAUDA measuring technology and precise temperature control using LAUDA clear-view thermostats, is unrivalled in terms of accuracy for measuring liquids with nearly Newtonian (ideal) flow properties.

Application examples

  • Determining the viscosity number, intrinsic viscosity (average molar mass) and other parameters of technical polymers such as PA, PET, PBT, PE, PP and PVC in accordance with EN-ISO 1628, ISO 307 for the quality control of plastics
  • Measuring absolute viscosities of engine oils and other lubricants in accordance with ASTM D445, viscosity index in accordance with ISO 2909 at 40 °C and 100 °C


LAUDA Measuring Instruments brochureDownload a PDF
of our Measuring Instruments brochure:

LAUDA Measuring Instruments Brochure (8.2 MB)

  The glass capillary viscometer advantages Your benefits
  • Ring marks with no detection disturbances
  • Precise, positioned, NIR permeable ring marks with exactly 40 mm clearance. The capillary constant is valid for stopwatch and automatic measuring systems.
  • Corrosion resistant labelling
  • There is no risk of abrasion or etching off of the labelling even with the use of strong acids and aggressive solvents used as samples or cleaning agents.
  • Ubbelohde for dilution series with calibration certificate and filter frit
  • Absolute measuring now also possible with calibrated dilution viscometers. The integrated frit ensures filtration when the sample dissolves in the viscometer.
  • Complete process chain from one supplier
  • LAUDA supplies all components for the viscosity application – clear-view thermostats, automatic viscosity measuring systems and glass capillary viscometers.
  • Customer-specific variants available on request
  • LAUDA supplies special variants as desired by the customer, specifically for adaptation to automatic measuring systems.

Ubbelohde Viscometers

Ubbelode Viscometers

For automatic and stopwatch measuring. Standard design with no thread for easy removal prior to external cleaning.

  • ISO 3105, DIN 51562, BS 188, NFT 60-100
  • Fill volume: 15...20 ml
  • Total length: approx. 290 mm
  • Measuring accuracy: ±0.2 %

Also available as ASTM version

Type Cap. const.
mm²/s²
DIN/ASTM
mm²/s
PVS or iVisc
mm²/s
Ø i
mm
Cat. No.
calibrated
Cat. No.
uncalibrated
0c 0.003 0.7...3 0.3…2 0.47 EGV 700 EGV 709
0a 0.005 1…5 0.5…3 0.53 EGV 701 EGV 710
I 0.01 2…10 0.7...7 0.63 EGV 702 EGV 711
Ic 0.03 3…30 2…20 0.84 EGV 703 EGV 712
II 0.1 20…100 6…60 1.13 EGV 704 EGV 713
IIc 0.3 60…300 20…200 1.50 EGV 705 EGV 714
III 1 200…1,000 60…600 2.01 EGV 706 EGV 715
IIIc 3 600…3,000 200…2,000 2.65 EGV 707 EGV 716
IV 10 2,000…10,000 600…6,000 3.60 EGV 708 EGV 717
IVc 30 6,000…30,000 2,000…20,000 4.70 EGV 699 EGV 697


Ubbelohde Viscometers for automatic cleaning

Ubbelohde Viscometers for automatic cleaning

For automatic and stopwatch measuring. With screw connections and aspirating tube for permanent
installation. Recommended for automatic cleaning with LAUDA VRM modules.

  • ISO 3105, DIN 51562, BS 188, NFT 60-100
  • Fill volume: 18...22 ml
  • Total length: approx. 290 mm
  • Measuring accuracy: ±0.2 %

Also available as ASTM version

Type Cap. const.
mm²/s²
DIN/ASTM
mm²/s
PVS or iVisc
mm²/s
Ø i
mm ±0,01
Cat. No.
calibrated
Cat. No.
uncalibrated
0c 0.003 0.7...3 0.3…2 0.47 EGV 931 EGV 940
0a 0.005 1…5 0.5…3 0.53 EGV 93 EGV 941
I 0.01 2…10 0.7…7 0.63 EGV 932 EGV 942
Ic 0.03 3…30 2…20 0.84 EGV 933 EGV 943
II 0.1 20…100 6…60 1.13 EGV 934 EGV 944
IIc 0.3 60…300 20…200 1.50 EGV 935 EGV 945
III 1 200…1,000 60…600 2.01 EGV 936 EGV 946
IIIc 3 600…3,000 200…2,000 2.65 EGV 937 EGV 947
IV 10 2,000…10,000 600…6,000 3.60 EGV 938 EGV 948


Micro-Ubbelohde Viscometers

Micro-Ubbelohde Viscometers

For small sample quantities and/or short measuring times. Design with no thread for easy removal
prior to external cleaning. Compatible with LAUDA VRM modules.

  • DIN 51562/2
  • Fill volume: 3...4 ml
  • Total length: approx. 290 mm
  • Measuring accuracy: ±0.5 %
Type Cap. const.
mm²/s²
DIN/ASTM
mm²/s
PVS or iVisc
mm²/s
Ø i
mm
Cat. No.
calibrated
Cat No.
uncalibrated
I 0.01 1…6 0.30…6 0.40 EGV 718 EGV 723
Ic 0.03 3…18 0. 8…18 0.53 EGV 719 EGV 724
II 0.1 10…60 3…60 0.70 EGV 720 EGV 725
IIc 0.3 30…180 8…180 0.95 EGV 721 EGV 726
III 1 100…800 30…800 1.26 EGV 722 EGV 727



Micro-Ostwald Viscometers

Micro-Ostwald Viscometers

For small sample quantities and/or very short measuring times. Design with no thread for easy removal
prior to external cleaning. Compatible with LAUDA VRM modules. Precise volume input required.
Especially recommended for heavy-foaming samples.

  • Fill volume: 2 ml
  • Total length: approx. 290 mm
  • Measuring accuracy: ±0.5 %
Type Cap. const.
mm²/s²
DIN/ASTM
mm²/s
PVS or iVisc
mm²/s
Ø i
mm
Cat. No.
calibrated
Cat. No.
uncalibrated
I 0.01 1…6 0.30…6 0.43 EGV 820 EGV 825
Ic 0.03 3…18 0.8…18 0.60 EGV 821 EGV 826
II 0.1 10…60 3…60 0.77 EGV 822 EGV 827
IIc 0.3 30…180 8…180 1.00 EGV 823 EGV 828
III 1 100…800 30…800 1.36 EGV 824 EGV 829



Cannon-Fenske Routine Viscometers for automatic cleaning

Cannon-Fenske Routine Viscometers for automatic cleaning

Viscometers for automatic and stopwatch measuring. With screw connections and aspirating tube for
permanent installation. Recommended for automatic cleaning with LAUDA VRM modules. Precise
volume input required.

  • ISO 3105, ASTM D 2515, BS 188
  • With filling and cleaning tube
  • Fill volume: approx. 5...10 ml
  • Total length: approx. 245 mm
  • Measuring accuracy: ±0.3 %
Type Cap. const.
mm²/s²
DIN/ASTM
mm²/s
PVS or iVisc
mm²/s
Ø i
mm
Cat. No.
calibrated
Cat. No.
uncalibrated
50 0.004 0.8...4 0.4...3 0.44 EGV 952 EGV 986
75 0.008 1.6...8 0.8...6 0.54 EGV 951 EGV 987
100 0.015 3...15 2...10 0.63 EGV 953 EGV 988
150 0.035 7...35 4...25 0.78 EGV 954 EGV 989
200 0.1 20...100 8...60 1.01 EGV 955 EGV 990
300 0.25 50...250 20...100 1.27 EGV 957 EGV 991
350 0.5 100...500 40...200 1.52 EGV 956 EGV 992
400 1.2 240...1,200 100...500 1.92 EGV 958 EGV 993
450 2.5 500...2,500 200...1,000 2.35 EGV 959 EGV 994
500 8 1,600...8,000 700...3,500 3.20 EGV 960 EGV 995
600 20 4,000...20,000 1,500...7,500 4.20 EGV 961 EGV 996


Cannon-Fenske Routine Viscometers

Cannon-Fenske Routine Viscometers

For automatic and stopwatch measuring. Standard design with no thread for easy removal prior to
external cleaning. Precise volume input required.

  • ISO 3105, ASTM D 2515, BS 188
  • Fill volume: approx. 5...10 ml
  • Total length: approx. 245 mm
  • Measuring accuracy: ±0.3 %
Type Cap. const.
mm²/s²
DIN/ASTM
mm²/s
PVS or iVisc
mm²/s
Ø i
mm
Cat. No.
calibrated
Cat. No.
uncalibrated
50 0.004 0.8...4 0.4...3 0.44 EGV 862 EGV 873
75 0.008 1.6...8 0.8...6 0.54 EGV 861 EGV 874
100 0.015 3...15 2...10 0. 63 EGV 863 EGV 875
150 0.035 7...35 4...25 0.78 EGV 864 EGV 876
200 0.1 20...100 8...60 1.01 EGV 865 EGV 877
300 0.25 50...250 20...100 1.27 EGV 867 EGV 878
350 0.5 100...500 40...200 1.52 EGV 866 EGV 879
400 1.2 240...1,200 100...500 1.92 EGV 868 EGV 880
450 2.5 500...2,500 200...1,000 2.35 EGV 869 EGV 881
500 8 1,600...8,000 700...3,500 3.20 EGV 870 EGV 882
600 20 4,000...20,000 1,500...7,500 4.20 EGV 871 EGV 883


Ubbelohde Dilution Viscometers

Ubbelohde Dilution Viscometers

For convenient implementation of dilution series and determining concentration dependencies, e.g.
IV value measuring of polymers. Standard design with no thread for easy removal prior to external
cleaning. Can be connected with LAUDA VRM modules and dosing units. Recommended for automatic
measuring with LAUDA viscosity measuring systems.

  • Fill volume: 15...75 ml
  • Total length: approx. 290 mm
  • Measuring accuracy: ±0.2 %
Type Cap. const.
mm²/s²
PVS or iVisc
mm²/s
Ø i
mm
Cat. No.
calibrated
Cat. No.
uncalibrated
0c 0.003 0.3…2 0.47 EGV 912 EGV 921
0a 0.005 0.5…3 0.53 EGV 913 EGV 922
0a 0.005 0.5…3 0.53 EGV 913-1* EGV 922-1*
I 0.01 0.7...7 0.63 EGV 914 EGV 923
I 0.01 0.7...7 0.63 EGV 914-1* EGV 923-1*
Ic 0.03 2…20 0.84 EGV 915 EGV 924
II 0.1 6…60 1.13 EGV 916 EGV 925

*With integrated filter: porosity G 2

Accessories

Cat. No. Description
UG 003 Viscometer frame for Ubbelohde and Micro-Ubbelohde
UG 094 Viscometer frame for Micro-Ostwald
EZ 054 Cannon-Fenske viscometer holder for 2-legged capillaries (only for manual measuring)
EAO 156 Digital hand stop watch
EZ 287 Suction ball, 60 ml, opening 6.3 mm Ø
LZB 011 Labosol S for cleaning the glass capillary viscometer, 1 L
HKB 532 Adapter for Micro-Ubbelohde (for installation into automatic systems)

Application table

LAUDA supplies glass capillary viscometers in various designs. Use the following table to see which capillary is best suited for your application.

  Ubbelohde Micro-Ubbelohde Micro-Ostwald Cannon-Fenske Routine
Manual measurement ++ ++ + +
Automatic measurement ++ ++ + +
Frothing liquids o o + +
Volatile samples o o + +
Small samples/detergent quantities ++ +
High/low temperature + + o o
Black and used oils o o

++ use by preference    + well suited    o less suited    - unsuitable