Porosity

Porosity refers to the proportion of the internal pore volume of a material to its total volume, measured by gas or liquid permeation methods. It influences the adsorption, permeability, and strength properties of materials and is used to assess the quality of filtration materials, catalyst supports, and construction materials.
Selection
The selection of porosity should consider the material's intended use. For instance, high porosity is required for filtration applications, while structural materials demand low porosity. The measurement method should align with industry standards, and sample data should be compared with performance requirements to ensure that the porosity range meets the conditions of practical application.

Standards

Instruments

Test accuracy of +/- 0.01%, resolution 0.00001g/cm ³. Automatic calibration and gas path Self-check function, built-in multi-specification sample measuringflask, anti-splash test process, about 3 minutes to complete the single sample test.

$ 7335.00

Using high voltage DC technology, the maximum detection thickness is 36 mm, the voltage range is 0-30kV fully adjustable, with current limit protective coating and Sensitivity adjustment function, suitable for metallization or slightly wet coating detection.

$ 5992.00

The use of high voltage DC technology can detect 36mm thick coatings, with current limiting function to avoid coating damage, Sensitivity adjustment to adapt to metallization or slightly wet coatings, providing stability testing current and overcharge protection.

$ 6782.00

The static capacity method is used for testing, with a specific surface area ranging from 0.01 m2/g to no upper limit, and a pore size analysis of 3.5 to 5000 angstroms. The modular stainless steel gas circuit design ensures a high vacuum, and the metal dewar bottle maintains a constant temperature. It supports a variety of theoretical model calculations.

$ 23956.00

The static capacity method is used to test the principle, the aperture analytical range is 3.5 to 5000 angstroms, and it is equipped with a modular stainless steel vacuum gas circuit and a metal dewar bottle, which supports DFT and MC theoretical model calculations.

$ 28797.00

Modular stainless steel vacuum circuit design ensures high Vacuum Level, metal dewar bottle to maintain constant liquid nitrogen temperature. Equipped with High Accuracy Sensor and 22-bit AD converter, aperture analytical range 3.5 to 5000 Angstroms, support DFT and MC theoretical model calculations.

$ 19115.00

Accuracy better than 0.04%, Repeatability better than 0.02%, Porous material porosity analysis and rigid foam opening and closing Pore volume percentage test.

$ 6851.00