CATEGORIES

    Porous Material Porosity Tester

    Overview Standards
    A porosity tester measures the ratio of the internal pore volume to the total volume of a material using the gas displacement method. The instrument injects inert gas into the sample chamber and calculates porosity based on pressure changes. It is used to evaluate the permeability and structural characteristics of materials such as filter media and catalyst supports.
    Selection
    When selecting, consider matching the material's pore size range with the instrument's measurement range. Use the static volumetric method for powder samples and the mercury intrusion method for bulk materials. Pay attention to the applicability of gas adsorption models, and ensure temperature control accuracy meets standard method requirements. Compare the suitability of sample cell specifications with routine testing volumes.
    type
    Coated Film thickness
    Voltage range

    Standards

    Incoming GB/T 21650.1-2026
    Determination of pore size distribution and porosity of solid materials by mercury porosimetry and gas adsorption—Part 1: Mercury porosimetry