Name: ANSI/TAPPI T 448 om:2017(R2026) - Water Vapor Transmission Rate of Paper and Paperboard at 23C and 50% RH
Brand: Technical Association of the Pulp & Paper Industry

Water Vapor Transmission Rate of Paper and Paperboard at 23C and 50% RH

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Hardcopy , PDF

Language(s)

English

Published date

09-06-2026

Publisher

Technical Association of the Pulp & Paper Industry

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This method provides for the gravimetric determination of the water vapor transmission rate (WVTR) of sheet materials at 23C with an atmosphere of 50% RH on one side and a desiccant on the other.

DocumentType	Test Method
Pages	5
PublisherName	Technical Association of the Pulp & Paper Industry
Status	Current
Supersedes	TAPPI/ANSI T 448:2009(R2021)

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ANSI/TAPPI T 448 om:2017(R2026)

Water Vapor Transmission Rate of Paper and Paperboard at 23C and 50% RH

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