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ASTM-E96 2010

$44.96

E96/E96M-10 Standard Test Methods for Water Vapor Transmission of Materials

Published By Publication Date Number of Pages
ASTM 2010 12
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ASTM E96/E96M-10

Historical Standard: Standard Test Methods for Water Vapor Transmission of Materials

ASTM E96/E96M

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 1Ā¼ in. (32 mm) in thickness except as provided in Section 9. 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 either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard. However, derived results can be converted from one system to the other using appropriate conversion factors (see Table 1).

Keywords

permeability; plastics (general); plastic sheet and film; sheet material; thermal-insulating materials; thermal insulation permeability films; water vapor transmission (WVT): Thermal insulating materials (water vapor transmission); Water vapor transmission (WVT)–thermal insulation; ASTM Test Method E 96; Gypsum products; Permeability; Plastic sheet and film; Sheet materials (general)

ICS Code

ICS Number Code 77.040.99 (Other methods of testing metals)

DOI: 10.1520/E0096_E0096M-10

PDF Catalog

PDF Pages PDF Title
1 Scope
Referenced Documents
Terminology
Summary of Test Methods
TABLE 1
2 Significance and Use
Apparatus
Materials
3 Sampling
Test Specimens
Attachment of Specimen to Test Dish
Procedure for Desiccant Method
4 Procedure for Water Method
Calculation and Analysis of Results
6 Report
Precision and Bias
7 Keywords
FIG. 1
TABLE 2
8 X1. STANDARD TEST CONDITIONS
X1.1
TABLE 3
TABLE 4
9 X2. CUP DESIGN AND SEALING METHODS
X2.1
X2.2
X2.3
FIG. X2.1
10 X2.4
X2.5
X2.6
FIG. X2.2
FIG. X2.3
11 X3. PROCEDURE TO CALCULATE DEPENDENCY OF WATER VAPOR TRANSMISSION RATE ON RELATIVE HUMIDITY
X3.1
X3.2 Procedure
X3.3 Data Analysis
REFERENCES
ASTM-E96 2010
$44.96