Developed by Subcommittee: D06.92
WITHDRAWN, NO REPLACEMENT
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.
Formerly under the jurisdiction of Committee D06 on Paper and Paper Products, this test method was withdrawn in December 2009 due to insufficient committee interest in reviewing and revising the standard.
1.1 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.
1.2 This test method is applicable to papers that permit the passage of up to 25 mL of air/0.785 in.2 in 15 s, and in general, to papers not sufficiently porous to be tested by TAPPI methods T460 and T536.
Note 1—For testing pourous and semiporous paper, refer to TAPPI T460, and T536, respectively. Since the three methods (D 726, T460, and T536) do not give the same results, it is recommended that a specific method be agreed upon in specifications covering paper between the seller and the purchaser, and that the method be chosen to conform to the principle range.
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
D585 Practice for Sampling and Accepting a Single Lot of Paper, Paperboard, Fiberboard, and Related Product
D685 Practice for Conditioning Paper and Paper Products for Testing
E122 Practice for Calculating Sample Size to Estimate, With Specified Precision, the Average for a Characteristic of a Lot or Process
TAPPI StandardsT536 Resistance of paper to passage of air (HP Method)