Liquid-Liquid Porometer Testing
It measures the diameter of the most constricted part of a through pore (pore throat, largest pore diameter, Mean flow pore diameter, Pore diameter range, Pore distribution, Gas Permeability.
A wetting liquid spontaneously fills the pores of the material. Two immiscible wetting liquids are selected. Liquid 1 with lower surface tension is used to fill the pores of the sample. Liquid 2 is added to the top of the sample and is pressurized to displace the first from the pores and flow through the empty pores. The flow rate of Liquid 2 is also measured without wetting the sample with Liquid 1.The pore diameter is related to the surface tension of the two liquids. The flow rates yield pore distribution and and liquid permeability.
Pore Size range: .003 microns to 200
Test type:
T 1102 Pore size. Distribution and Bubble point
T 1103 Micro flow liquid permeability, Pore distribution and Bubble point
