ASTM C1763-16
(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 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 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 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.
1.5 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 and health practices and determine the applicability of regulatory limitations prior to use.
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Designation: C1763 − 16
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 sample and time of immersion.As such, comparisons between
Procedures A, B, and, C cannot be made. Cracks in the
1.1 This test method determines the amount of water re-
specimens and rough surfaces can increase the apparent water
tained (excluding surface water) by flat specimens of thermal
absorption.
insulations after these materials have been fully immersed in
liquid water for a prescribed time interval under isothermal 2.2 Some materials tend to collect water on surfaces or to
conditions. This test method is intended to be used for the trap water in corners and, if not removed, will give incorrect
characterizationofmaterialsinthelaboratory.Itisnotintended results.
to simulate any particular environmental condition potentially
2.3 Materials that change or react with water can have
encountered in building construction applications.
increased (or decreased) apparent water absorption and are not
1.2 This test method does not address all the possible suitable for use with this method. 13.5.1 provides a method for
mechanisms of water intake and retention and related phenom- ensuring the specimen has not been physically or chemically
ena for thermal insulations. It relates only to those conditions altered in a way that would invalidate the measurement. Use
outlined in 1.1. Determination of moisture accumulation in this method in cases of dispute.
thermal insulations due to partial immersion, water vapor
3. Referenced Documents
transmission, internal condensation, freeze-thaw cycling, or a
2
combination of these effects requires different test procedures.
3.1 ASTM Standards:
C168 Terminology Relating to Thermal Insulation
1.3 This test method does not address or attempt to quantify
C303 Test Method for Dimensions and Density of Pre-
the drainage characteristics of materials.
formed Block and Board–Type Thermal Insulation
1.4 The values stated in either SI units or inch-pound units
C870 Practice for Conditioning of Thermal Insulating Ma-
are to be regarded separately as standard. The values stated in
terials
each system may not be exact equivalents; therefore, each
C1134 Test Method for Water Retention of Rigid Thermal
system shall be used independently of the other. Combining
Insulations Following Partial Immersion
values from the two systems may result in non-conformance
E177 Practice for Use of the Terms Precision and Bias in
with the standard.
ASTM Test Methods
1.5 This standard does not purport to address all of the
E691 Practice for Conducting an Interlaboratory Study to
safety concerns, if any, associated with its use. It is the
Determine the Precision of a Test Method
responsibility of the user of this standard to establish appro-
4. Terminology
priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use.
4.1 Definitions—Terminology C168 applies to terms used in
this test method.
2. Material And Specimen Characteristics that can
Influence Results 5. Summary of Test Method
2.1 The apparent water absorption measured by this test 5.1 Test specimens are conditioned and then immersed in
method is dependent on the surface to volume ratio of the water for a prescribed amount of time. The amount of water
absorbed is determined by the weight increase in the speci-
mens.
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 March 1, 2016. Published July 2016. Originally contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
approved in 2014. Last previous edition approved in 2014 as C1763 – 14. DOI: Standards volume information, refer to the standard’s Document Summary page on
10.1520/C1763-16. the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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C1763 − 16
6. Significance and Use 8.3.1 Test specimens shall be 305 63by305 63mm(12
by 12 in.) with all four edges trimmed square and thickness
6.1 This test method provides a means of measuring the
representative of manufactured product.
water absorption of flat specimens of thermal insulation
8.3.2 One specimen from each of t
...
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.
Designation: C1763 − 14 C1763 − 16
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
1.1 This test method determines the amount of water retained (excluding surface water) by flat 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 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.
1.5 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 and health practices and determine the applicability of regulatory
limitations prior to use.
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. 12.5.113.5.1 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
C303 Test Method for Dimensions and Density of Preformed Block and Board–Type Thermal Insulation
C870 Practice for Conditioning of Thermal Insulating Materials
C1134 Test Method for Water Retention of Rigid Thermal Insulations Following Partial Immersion
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
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 May 1, 2014March 1, 2016. Published July 2014July 2016. Originally approved in 2014. Last previous edition approved in 2014 as C1763 – 14.
DOI: 10.1520/C1763–14.10.1520/C1763-16.
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 − 16
4. Terminology
4.1 Definitions—Terminology C168 applies to terms used in this test method.
5. Summary of Test Method
5.1 Test specimens are conditioned and then immersed in water for a prescribed amount of time. The amount of water absorbed
is determined by the weight inc
...
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