ASTM F 316 - 03 (Reapproved 2011) Standard Test Methods for Pore Size Characteristics of Membrane Filters by Bubble Point and Mean Flow Pore Test

American Society for Testing and Materials (ASTM). Current edition approved May 1, 2011. Published June 2011. Originally approved in 1970 as F316 –
70. Last previous edition approved in 2003 as F316 – 03. 7 p. These test methods cover the determination of two of the pore size properties of membrane filters with maximum pore sizes from 0.1 to 15.0 μm.
Test Method A presents a test method for measuring the maximum limiting pore diameter of nonfibrous membranes. The limiting diameter is the diameter of a circle having the same area as the smallest section of a given pore.
Test Method B measures the relative abundance of a specified pore size in a membrane, defined in terms of the limiting diameter.