ASTM D 726 - 94 (Reapproved 2003) Standard Test Method for Resistance of Nonporous Paper to Passage of Air

American Society for Testing and Materials (ASTM). Current edition approved April 15, 1994. Published June 1994. Originally published as D726 – 43 T. Last previous edition D726 – 58(1971). 3 p. This test method covers the determination of the resistance of nonporous paper to the passage of air. This test method cannot be used in those cases where the paper cannot be clamped securely against surface and edge leakage, such as, crepe or corrugated papers.