CATEGORIES

    HydroMeter

    Overview Knowledge Standards Terms
    Liquid hydrometers measure the density of liquids using the buoyancy method or the vibration method. The buoyancy type utilizes Archimedes' principle, while the vibration type calculates density through the resonant frequency of a U-shaped tube. They are used to detect the concentration of paints and inks, the purity of solvents, and the solid content of slurries. In color matching, formulation, and quality control, they help determine the composition and state of substances.
    Selection
    When selecting, consider the liquid characteristics: use quartz glass for corrosive liquids, and opt for models with temperature control for viscous liquids. Precision requirements: 0.001 g/cm³ for production sites, and 0.0001 g/cm³ for research and development. Choose micro models when sample quantities are limited. Also, consider auxiliary functions such as automatic cleaning and data storage.
    Principle
    Application Scenario
    Measured Object
    Measured Parameter
    Density Range
    Weighing Range
    Temp Control

    Terms

    Coating rod
    Hydrostatic Electronic Balance
    Platinum-Cobalt Colorimeter
    Dispersing Emulsifier
    Dry Type Low Temperature Thermostat
    Constant Temperature Oscillating Water Bath Shaker
    Conical sand mill
    Fluorescence Dissolved Oxygen Meter
    Open flash point tester
    Full Temperature Constant Temperature Water Bath

    Standards

    Active GB/T 29617-2013
    Determination of density, relative density,and API gravity of liquids by digital density meter

    Articles

    Density Determination: Selection Strategy between Pycnometer Method and Densimeter Method
    This article introduces two methods for measuring the density of substances: the pycnometer method and the densimeter method. The pycnometer method calculates density by measuring the mass of a sample of fixed volume. It is suitable for measuring liquids, powders, and small granular solids, offering high precision but slower operation, and requires temperature control.