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ANSI/TAPPI T 460 om:2021(R2026)

Current

Current

The latest, up-to-date edition.

Air Resistance of Paper (Gurley Method)

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

09-06-2026

This method measures the amount of time required for a certain volume of air to pass through a test specimen.

DocumentType
Official Test Method
Pages
7
PublisherName
Technical Association of the Pulp & Paper Industry
Status
Current
Supersedes

This method is used to measure the air resistance of approximately 6.45 sq. cm. (l sq. in.) circular area of paper using a pressure differential of 1.22 kPa.