CATEGORIES

    RheoviscoMeter

    Overview Knowledge Standards Terms
    A flow viscometer calculates viscosity by measuring the flow time of fluid through a fixed aperture or the pressure difference. It is used for quality control of fluids such as coatings and inks, monitoring the flow characteristics of materials during production.
    Selection
    Select the appropriate range based on the viscosity range of the fluid being measured, taking into account temperature adaptability. Balance sample volume and instrument accuracy, ensuring material compatibility. Consider ease of operation and maintenance costs.
    Type
    Viscosity Range
    Sample Type
    Functions
    Precision
    Repeatability
    Sample Volume
    Max Speed
    Speed Control
    Temp Range
    Display

    Terms

    Ford Viscosity Cup
    Ubbelohde viscometer
    Ford Viscosity Cup
    Viscosity Flow Cup
    Paint film consistency tester
    Ford viscosity cup No. 4
    Rainproof test chamber
    Zahn viscosity cup
    Stomer viscometer
    Viscosity measurement second cup

    Standards

    Active GB/T 5561-2012
    Surface active agents - Determination of viscosity and flow properties using a rotational viscometer
    Active GB/T 265-1988
    Petroleum products--Determination of kinematic viscosity and calculation of dynamic viscosity
    Active GB/T 11137-1989
    Black petroleum products--Determination of kinematic viscosity (reverse-flow method) and calculation of dynamic viscosity
    Active GB/T 1632.5-2008
    Plastics - Determination of the viscosity of polymers in dilute solution using capillary viscometers - Part 5 : Thermoplastic polyester(TP) homopolymers and copolymers
    Active GB/T 5516-2011
    Inspection of grain and oils - Determination of viscosity of grain - Capillary viscometer method
    Active GB/T 15357-2014
    Surface active agents and detergents―Determination of viscosity and flow properties of liquid products using a rotational viscometer
    Active GB/T 22770-2008
    Graphic technology - Determination of rheological properties of paste inks and vehicles by the falling rod viscometer

    Articles

    The main issue with using a Ubbelohde viscometer is that 90% of capillary blockages are caused by inadequate sample filtration.
    More than 90% of capillary blockage in Ubbelohde viscometers during measurement is due to inadequate sample filtration. Minute particles or gels in the sample tend to adhere to or become trapped when flowing through the narrow capillary, leading to abnormal flow rates and affecting measurement accuracy.