ASTM C1763-20
(Test Method)Standard Test Method for Water Absorption by Immersion of Thermal Insulation Materials
Standard Test Method for Water Absorption by Immersion of Thermal Insulation Materials
SIGNIFICANCE AND USE
6.1 This test method provides a means of measuring the water absorption of flat or cylindrical specimens of thermal insulation materials under isothermal conditions as a result of direct immersion in liquid water. It is intended for quality control and product and material specifications.
6.2 The procedure to be used: A, B, or C as well as any exceptions shall be noted in material specifications citing this test method.
6.3 Repeatability has been established only for one type and size of material at one immersion duration.
Note 1: Specifications referring to this test method are encouraged to establish repeatability for specific materials, immersion duration, and dimensions for inclusion in this test method.
SCOPE
1.1 This test method determines the amount of water retained (excluding surface water) by flat or cylindrical specimens of thermal insulations after these materials have been fully immersed in liquid water for a prescribed time interval under isothermal conditions. This test method is intended to be used for the characterization of materials in the laboratory. It is not intended to simulate any particular environmental condition potentially encountered in building construction applications.
1.2 This test method does not address all the possible mechanisms of water intake and retention and related phenomena for thermal insulations. It relates only to those conditions outlined in 1.1. Determination of moisture accumulation in thermal insulations due to partial immersion, water vapor transmission, internal condensation, freeze-thaw cycling, or a combination of these effects requires different test procedures.
1.3 This test method does not address or attempt to quantify the drainage characteristics of materials.
1.4 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined.
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.
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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.
Designation: C1763 − 20
Standard Test Method for
Water Absorption by Immersion of Thermal Insulation
1
Materials
This standard is issued under the fixed designation C1763; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope mendations issued by the World Trade Organization Technical
Barriers to Trade (TBT) Committee.
1.1 This test method determines the amount of water re-
tained (excluding surface water) by flat or cylindrical speci-
2. Material And Specimen Characteristics that can
mens of thermal insulations after these materials have been
Influence Results
fully immersed in liquid water for a prescribed time interval
under isothermal conditions. This test method is intended to be 2.1 The apparent water absorption measured by this test
used for the characterization of materials in the laboratory. It is method is dependent on the surface to volume ratio of the
not intended to simulate any particular environmental condi- sample and time of immersion.As such, comparisons between
tion potentially encountered in building construction applica- Procedures A, B, and, C cannot be made. Cracks in the
tions. specimens and rough surfaces can increase the apparent water
absorption.
1.2 This test method does not address all the possible
mechanisms of water intake and retention and related phenom- 2.2 Some materials tend to collect water on surfaces or to
trap water in corners and, if not removed, will give incorrect
ena for thermal insulations. It relates only to those conditions
outlined in 1.1. Determination of moisture accumulation in results.
thermal insulations due to partial immersion, water vapor
2.3 Materials that change or react with water can have
transmission, internal condensation, freeze-thaw cycling, or a
increased (or decreased) apparent water absorption and are not
combination of these effects requires different test procedures.
suitable for use with this method. 12.7.1 provides a method for
1.3 This test method does not address or attempt to quantify ensuring the specimen has not been physically or chemically
altered in a way that would invalidate the measurement. Use
the drainage characteristics of materials.
this method in cases of dispute.
1.4 The values stated in either SI units or inch-pound units
are to be regarded separately as standard. The values stated in
3. Referenced Documents
each system are not necessarily exact equivalents; therefore, to
2
ensure conformance with the standard, each system shall be 3.1 ASTM Standards:
C168 Terminology Relating to Thermal Insulation
used independently of the other, and values from the two
systems shall not be combined. C302 Test Method for Density and Dimensions of Pre-
formed Pipe-Covering-Type Thermal Insulation
1.5 This standard does not purport to address all of the
C303 Test Method for Dimensions and Density of Pre-
safety concerns, if any, associated with its use. It is the
formed Block and Board–Type Thermal Insulation
responsibility of the user of this standard to establish appro-
C870 Practice for Conditioning of Thermal Insulating Ma-
priate safety, health, and environmental practices and deter-
terials
mine the applicability of regulatory limitations prior to use.
C1134 Test Method for Water Retention of Rigid Thermal
1.6 This international standard was developed in accor-
Insulations Following Partial Immersion
dance with internationally recognized principles on standard-
E177 Practice for Use of the Terms Precision and Bias in
ization established in the Decision on Principles for the
ASTM Test Methods
Development of International Standards, Guides and Recom-
E691 Practice for Conducting an Interlaboratory Study to
Determine the Precision of a Test Method
1
ThistestmethodisunderthejurisdictionofASTMCommitteeC16onThermal
Insulation and is the direct responsibility of Subcommittee C16.33 on Insulation
2
Finishes and Moisture. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved May 1, 2020. Published May 2020. Originally contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
ε1
approved in 2014. Last previous edition approved in 2019 as C1763 – 19 . DOI: Standards volume information, refer to the standard’s Document Summary page on
10.1520/C1763-20. the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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---------------------- Page: 1 -
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
´1
Designation: C1763 − 19 C1763 − 20
Standard Test Method for
Water Absorption by Immersion of Thermal Insulation
1
Materials
This standard is issued under the fixed designation C1763; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1
ε NOTE—Corrected Section 15 editorially in January 2020.
1. Scope
1.1 This test method determines the amount of water retained (excluding surface water) by flat or cylindrical specimens of
thermal insulations after these materials have been fully immersed in liquid water for a prescribed time interval under isothermal
conditions. This test method is intended to be used for the characterization of materials in the laboratory. It is not intended to
simulate any particular environmental condition potentially encountered in building construction applications.
1.2 This test method does not address all the possible mechanisms of water intake and retention and related phenomena for
thermal insulations. It relates only to those conditions outlined in 1.1. Determination of moisture accumulation in thermal
insulations due to partial immersion, water vapor transmission, internal condensation, freeze-thaw cycling, or a combination of
these effects requires different test procedures.
1.3 This test method does not address or attempt to quantify the drainage characteristics of materials.
1.4 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each
system are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used
independently of the other, and values from the two systems shall not be combined.
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.
2. Material And Specimen Characteristics that can Influence Results
2.1 The apparent water absorption measured by this test method is dependent on the surface to volume ratio of the sample and
time of immersion. As such, comparisons between Procedures A, B, and, C cannot be made. Cracks in the specimens and rough
surfaces can increase the apparent water absorption.
2.2 Some materials tend to collect water on surfaces or to trap water in corners and, if not removed, will give incorrect results.
2.3 Materials that change or react with water can have increased (or decreased) apparent water absorption and are not suitable
for use with this method. 12.5.112.7.1 provides a method for ensuring the specimen has not been physically or chemically altered
in a way that would invalidate the measurement. Use this method in cases of dispute.
3. Referenced Documents
2
3.1 ASTM Standards:
C168 Terminology Relating to Thermal Insulation
C302 Test Method for Density and Dimensions of Preformed Pipe-Covering-Type Thermal Insulation
1
This test method is under the jurisdiction of ASTM Committee C16 on Thermal Insulation and is the direct responsibility of Subcommittee C16.33 on Insulation Finishes
and Moisture.
Current edition approved Oct. 15, 2019May 1, 2020. Published November 2019May 2020. Originally approved in 2014. Last previous edition approved in 20162019 as
ε1
C1763 – 16.C1763 – 19 . DOI: 10.1520/C1763-19E01.10.1520/C1763-20.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
C1763 − 20
C303 Test Method for Dimensions and Density of Preformed Block and Board–Type Thermal Insulation
C870 Practice for Conditioning of Thermal Insula
...
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