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ASTM-C1498:2023 Edition

ASTM-C1498:2023 Edition

$29.79

C1498-04a(2023) Standard Test Method for Hygroscopic Sorption Isotherms of Building Materials

Published By Publication Date Number of Pages
ASTM 2023 4
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ASTM C1498-04a-Reapproved2023

Active Standard: Standard Test Method for Hygroscopic Sorption Isotherms of Building Materials

ASTM C1498

Scope

1.1 This test method specifies a laboratory procedure for the determination of hygroscopic sorption isotherms of any construction materials. The method was originally developed for the ASTM Thermal Insulation committee.

1.2 For material characterization, the primary emphasis is on the adsorption isotherm (that is, sorption isotherm that describes the wetting process of the material from the oven-dry condition).

1.3 Determination of desorption isotherm, (that is, sorption isotherm that describes the drying process of a material from the state of absolute saturation with water) is performed when information on drying characteristics of construction materials is required. Typically both adsorption and desorption isotherms are required for the purpose of hygrothermal models.

1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.5 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

Keywords

hysteresis; moisture content; water vapor sorption;

ICS Code

ICS Number Code 91.120.30 (Waterproofing)

DOI: 10.1520/C1498-04AR23

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