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ASTM International - ASTM E96/E96M-05

Standard Test Methods for Water Vapor Transmission of Materials

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Organization: ASTM International
Publication Date: 1 May 2005
Status: inactive
Page Count: 11
ICS Code (Other methods of testing of metals): 77.040.99
significance And Use:

The purpose of these tests is to obtain, by means of simple apparatus, reliable values of water vapor transfer through permeable and semipermeable materials, expressed in suitable units. These... View More

scope:

1.1 These test methods cover the determination of water vapor transmission (WVT) of materials through which the passage of water vapor may be of importance, such as paper, plastic films, other sheet materials, fiberboards, gypsum and plaster products, wood products, and plastics. The test methods are limited to specimens not over 11/ 4 in. (32 mm) in thickness except as provided in Section . Two basic methods, the Desiccant Method and the Water Method, are provided for the measurement of permeance, and two variations include service conditions with one side wetted and service conditions with low humidity on one side and high humidity on the other. Agreement should not be expected between results obtained by different methods. The method should be selected that more nearly approaches the conditions of use.

1.2 The values stated in inch-pound units are to be regarded separately as the standard. Within the text, the SI units are shown in parentheses. The values stated in each system are not exact equivalents; therefore each system must be used independently of the other. Combining values from two systems will result in non-conformance with the standard. However derived results can be converted from one system to other using appropriate conversion factors (see Table 1).

1.3 This standard does not purport to address all of the safety problems, 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.

Document History

March 1, 2022
Standard Test Methods for Gravimetric Determination of Water Vapor Transmission Rate of Materials
1.1 These test methods cover the determination of water vapor transmission rate (WVTR) of materials, such as, but not limited to, paper, plastic films, other sheet materials, coatings, foams,...
September 15, 2021
Standard Test Methods for Gravimetric Determination of Water Vapor Transmission Rate of Materials
1.1 These test methods cover the determination of water vapor transmission rate (WVTR) of materials, such as, but not limited to, paper, plastic films, other sheet materials, coatings, foams,...
March 1, 2016
Standard Test Methods for Water Vapor Transmission of Materials
1.1 These test methods cover the determination of water vapor transmission (WVT) of materials through which the passage of water vapor may be of importance, such as paper, plastic films, other sheet...
May 1, 2015
Standard Test Methods for Water Vapor Transmission of Materials
1.1 These test methods cover the determination of water vapor transmission (WVT) of materials through which the passage of water vapor may be of importance, such as paper, plastic films, other sheet...
October 15, 2014
Standard Test Methods for Water Vapor Transmission of Materials
1.1 These test methods cover the determination of water vapor transmission (WVT) of materials through which the passage of water vapor may be of importance, such as paper, plastic films, other sheet...
November 1, 2013
Standard Test Methods for Water Vapor Transmission of Materials
1.1 These test methods cover the determination of water vapor transmission (WVT) of materials through which the passage of water vapor may be of importance, such as paper, plastic films, other sheet...
December 15, 2012
Standard Test Methods for Water Vapor Transmission of Materials
1.1 These test methods cover the determination of water vapor transmission (WVT) of materials through which the passage of water vapor may be of importance, such as paper, plastic films, other sheet...
October 1, 2010
Standard Test Methods for Water Vapor Transmission of Materials
1.1 These test methods cover the determination of water vapor transmission (WVT) of materials through which the passage of water vapor may be of importance, such as paper, plastic films, other sheet...
ASTM E96/E96M-05
May 1, 2005
Standard Test Methods for Water Vapor Transmission of Materials
1.1 These test methods cover the determination of water vapor transmission (WVT) of materials through which the passage of water vapor may be of importance, such as paper, plastic films, other sheet...
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