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Significance and Use
5.1 The sorption of water can result in an increase in weight and a resultant potential degradation of the properties of the insulation.
1.1 This test method covers the determination of the amount of water vapor sorbed by mineral fiber insulation exposed to a high-humidity atmosphere. This test method is applicable only to fibrous base material and binder. The results obtained by this test method cannot be used in describing faced products, since the facing is not tested by using this test method.
1.2 The water vapor sorption characteristics of materials may be affected by conditions such as elevated temperatures or chemical exposures. Values obtained as a result of this test method may not adequately describe the water vapor sorption characteristics of materials subjected to these conditions.
1.3 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.
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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.5 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.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
C167 Test Methods for Thickness and Density of Blanket or Batt Thermal Insulations
C302 Test Method for Density and Dimensions of Preformed Pipe-Covering-Type Thermal Insulation
C303 Test Method for Dimensions and Density of Preformed Block and BoardType Thermal Insulation
C390 Practice for Sampling and Acceptance of Thermal Insulation Lots
E177 Practice for Use of the Terms Precision and Bias in ASTM Test Methods
E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
ICS Number Code 91.100.60 (Thermal and sound insulating materials)
UNSPSC Code 30141508(Fiber insulation)
|Link to Active (This link will always route to the current Active version of the standard.)|
ASTM C1104 / C1104M-19, Standard Test Method for Determining the Water Vapor Sorption of Unfaced Mineral Fiber Insulation, ASTM International, West Conshohocken, PA, 2019, www.astm.orgBack to Top