CATEGORIES

    PyknoMeter

    Overview Knowledge Standards Terms
    The pycnometer determines density by measuring the ratio of the mass of a substance within a fixed volume to the mass of an equal volume of water. It is used to detect the density of liquids, powders, and other materials, and is applied in quality control within the chemical, food, and pharmaceutical industries.
    Selection
    When selecting, consider measurement accuracy and sample characteristics. Glass material is suitable for routine liquids, while stainless steel offers better corrosion resistance. Determine the bottle opening size based on sample viscosity. For high-temperature samples, choose heat-resistant materials. Match the capacity to common sample volumes, and ensure calibration certificates for accurate measurements.
    material
    Cup volume
    Calibrated certificate

    Terms

    Paint density cup

    Standards

    Active GB/T 29617-2013
    Determination of density, relative density,and API gravity of liquids by digital density meter
    Active GB/T 21782.3-2025
    Coating powders—Part 3：Determination of density by liquid displacement pycnometer
    Active GB/T 21782.2-2025
    Coating powders—Part 2：Determination of density by gas comparison pycnometer （referee method）
    Active GB/T 6750-2007
    Paints and varnishes - Determination of density - Pyknometer method
    Active GB/T 15223-2008
    Plastics - Liquid resins - Determination of density by the pyknometer method
    Active GB/T 1713-2008
    Determination of density of pigments - Pyknometer method

    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.