Micromeritics Subsieve AutoSizer II
Modernized, fully automated version of the Fisher Model 95 Sub-Sieve Sizer (FSSS) for particle size, surface area, and powder bed porosity
- ▪ Built-in computer with intuitive touchscreen
- ▪ Uses a high-quality mass flow controller and high sensitivity transducers for the highest accuracy in air pressure control and monitoring
- ▪ Live data monitoring with results generated in minutes on the touchscreen
- ▪ Fisher mapping tool available to report equivalent Fisher Number results
- ▪ Small footprint
Micromeritics Subsieve AutoSizer II
The SAS is designed to generate “Fisher number” results highly consistent with that of its predecessor (the Fisher FSSS). This is a crucial point, as the air permeability technique and the FSSS have been used as a benchmark for decades in many industries. Many applications use historical data and quality control standards, and a modern source of comparable, repeatable results is necessary.
Air-permeability Particle Sizing
What is Air-permeability Particle Sizing?
The air-permeability technique is well established for measurement of the Specific Surface Area (SSA) of a sample powder. The SSA measured by this technique has been found to be a useful parameter in various industries such as pharmaceutical, metal coatings, paints, and even geological samples.
The MIC SAS II utilizes dual pressure transducers to measure pressure drop across a packed bed of powder. By varying the sample height and porosity while controlling the flow rate of air through the sample, the SSA and average particle size can be determined using the Kozeny-Carman equation.
