Pore-size characteristics

American Society for Testing and Materials. Standard Test Method for Pore Size Characteristics of Membrane Filters for Use with Aerospace Fluids. ASTM F316-80, part 25. Philadelphia pp. 872-878 (1981). 

ASTM E 1294-89 Standard test method for pore size characteristics of membrane filters using automated liquid porosimeter, ASTM International. 

SYSTEMATIC SORPTION STUDIES ON SURFACE AND PORE SIZE CHARACTERISTICS OF DIFFERENT MCM-48 SILICA MATERIALS... 

Systematic sorption studies on surface and pore size characteristics of different MCM-48 silica materials... 

Consider the principal factors which determine the porosity and pore size characteristics of dry process membranes ... 

Thommes, M., Kohn, R., and Froba, M. (2000). Systematic sorption studies on surface and pore size characteristics of different MCM-48 sihca materials. Stud. Surf. Sci. Catal. Characterisation Porous Solids V, 128, 259-68. 

A more detailed characterization of the pore-size characteristics of AGM can be obtained with the mercury intrusion technique. This is based on the principle that the external pressure required to force a non-wetting liquid into a pore against the opposing force of surface tension depends on the pore size. The technique is widely employed to characterize porous materials, and provides data on pore diameter, pore-size distribution, and pore volume. Some caution must be apphed in interpreting the results, however, because of the assumptions that are made concerning cylindrical pores, contact angle, and the surface tension of mercury. 

ASTM, Pore Size Characteristics of Membrane Filters for Use with Aero-... 

ASTM F316-86, 1987, Pore-size characteristics of membrane filters by bubble point and mean flow pore test, American Society for Testing Materials. 

Table 3.3 Classification of the pore formation methods and the resulting pore size characteristics for selected materials.

From the above description of the basic geo-filtration mechanism, it becomes evident that the performance of geotextiles as filter media depends largely on two properties the material s cross-plane permeability and pore-size characteristics. 

Separation placed between two layers of soil or granular material of differing particle sizes, a geotextile with suitable pore size characteristics would form a barrier to the migration of particles from one layer to another. 

Table 3.1 Pore size characteristics of different carbon supports employed for catalytical applications ...

Generally speaking, the pore size characteristics are close within one type of refractory and differ for different types of refractories. 

High surface areas and small pore sizes characteristic of inorganic gels are properties unattainable by conventional ceramic processing methods. These unique properties may be exploited in applications such as filtration, separations, catalysis, and chromatography. (See Table 12.) The use of porous gels in separations and nitrations was reviewed by Klein [243]. 

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