BSD- PB Series Membrane Pore Size Analyzer

Description

The PB Membrane Pore Size Analyzer utilizes the gas-liquid or liquid liquid displacement method (bubble pressure method) to accurately measure the pore size characteristics of membrane materials. By applying a pressure difference across the membrane, the system overcomes the surface tension of the infiltration liquid, driving it through the pores to determine pore throat sizes. This method is the standard for ASTM thin film pore size testing.The analyzer is widely used for pore size analysis in materials such as filter membranes, fiber membranes, filter elements, battery separators, fabrics, non-woven fabrics, paper, ceramics, sintered metals, rocks, concrete, and more.

Key Feature
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0.012 µm to 500 µm
Precise pore size measurement using the gas-liquid displacement method.

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Bubble Pressure Method
Through-Hole Aperture:** ASTM-compliant method for measuring film pore sizes.

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Vacuum-Assisted Wetting
Fast, efficient sample infiltration that improves wetting efficiency and simplifies operation.

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Dual Pressure Sensors
Segmented pressure measurement with complementary ranges for enhanced accuracy.

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Dual Flow Sensors
Segmented flow measurement with automatic program switching for optimal performance.

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Versatile Sample Pool
Adapts to various membrane sizes and types for flexible testing.

Specifications
Model BSD-PB BSD-PBB
Function: Pore size distribution, average pore size, most probable pore size, minimum pore size, bubble point pore size (maximum pore size), bubble point pressure, wet film flow-pressure curve (wet curve), dry film flow-pressure curve (dry curve), gas permeability, gas flux, liquid permeability (liquid-liquid method function), liquid flux (liquid-liquid method function)
Sample Types Flat filter membranes (such as battery separators, carbon paper, non-woven fabrics, filter paper, flat ceramic membranes, flat metal sintered membranes), hollow fiber membranes, tubular membranes, etc.
Pore Size Range 0.012um~500um 0.12um~500um
Method Gas Liquid Displacement Gas Liquid Displacement
Pressure Control 0~500PSI 0~50 PSI
Accuracy ±0.02PSI ±0.002 PSI
Gas FLowrate 0~1L/min (±0.5ml/min)+ 0~1L/min (±0.5ml/min)+
0-200L/min (±0.1L/min)； 0-200L/min (±0.1L/min)；