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ASTM C1498-04

Historical Revision

Standard Test Method for Hygroscopic Sorption Isotherms of Building Materials

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


SDO ASTM: ASTM International
Document Number C1498
Publication Date May 1, 2004
Language en - English
Page Count 4
Revision Level 04
Supercedes
Committee C16.33
Publish Date Document Id Type View
Sept. 1, 2004 C1498-04A Revision
May 1, 2004 C1498-04 Revision
May 10, 2001 C1498-01 Revision
March 15, 2023 C1498-04AR23 Reaffirmation
Aug. 15, 2016 C1498-04AR16 Reaffirmation
Nov. 1, 2010 C1498-04AR10E01 Reaffirmation