ASTM D 726 Standard Test Method for Resistance of Nonporous Paper to Passage of Air
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ASTM D 726 Document Information:
Title
Standard Test Method for Resistance of Nonporous Paper to Passage of Air
ASTM International
Publication Date:
Apr 15, 1994
Scope:
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.
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.
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.
Keywords:
- filter paper
- insulating paper
- nonporous paper
- paper
- uncoated printing paper
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