ASTM C687-18
(Practice)Standard Practice for Determination of Thermal Resistance of Loose-Fill Building Insulation
Standard Practice for Determination of Thermal Resistance of Loose-Fill Building Insulation
SIGNIFICANCE AND USE
4.1 The thermal resistance, R, of an insulation is used to describe its thermal performance.
4.2 The thermal resistance of an insulation is related to the density and thickness of the insulation. It is desirable to obtain test data on thermal resistances at thicknesses and densities related to the end uses of the product.
4.3 In normal use, the thickness of these products range from less than 100 mm (4 in.) to greater than 500 mm (20 in.). Installed densities depend upon the product type, the installed thickness, the installation equipment used, the installation techniques, and the geometry of the insulated space.
4.4 Loose-fill insulations provide coverage information using densities selected by manufacturers to represent the product settled densities. Generally, it is necessary to know the product thermal performance at a representative density. Some coverage charts utilize multiple densities to show that greater thickness installations usually result in higher installed densities. The use of multiple densities can be detected from the coverage chart by calculating the density for several different thermal resistance levels. (The density for a given thermal resistance can be calculated from the coverage chart by dividing the minimum mass per unit area by the minimum thickness.) If the calculated densities are significantly different at different thermal resistances, the multiple density strategy has been used.
4.5 When applicable specifications or codes do not specify the nominal thermal resistance level to be used for comparison purposes, a recommended practice is to use the Rsi (metric) = 3.3 m2K/W (RIP = 19 [h ft2F/Btu]) label density and thickness for that measurement.
4.6 If the density for test purposes is not available from the coverage chart, a test density shall be established by use of applicable specifications and codes or, if none apply, agreement between the requesting body and the testing organization.
4.7 Generally, thin sections o...
SCOPE
1.1 This practice presents a laboratory guide to determine the thermal resistance of loose-fill building insulations at mean temperatures between −20 and 55°C (−4 to 131°F).
1.2 This practice applies to a wide variety of loose-fill thermal insulation products including but not limited to fibrous glass, rock/slag wool, or cellulosic fiber materials; granular types including vermiculite and perlite; pelletized products; and any other insulation material installed pneumatically or poured in place. It does not apply to products that change their character after installation either by chemical reaction or the application of binders or adhesives, nor does it consider the effects of structures, containments, facings, or air films.
1.3 Since this practice is designed for reproducible product comparison, it measures the thermal resistance of an insulation material which has been preconditioned to a relatively dry state. Consideration of changes of thermal performance of a hygroscopic insulation by sorption of water is beyond the scope of this practice.
1.4 The sample preparation techniques outlined in this practice do not cover the characterization of loose-fill materials intended for enclosed applications. For those applications, a separate sample preparation technique that simulates the installed condition will be required. However, even for those applications, some other aspects of this practice are applicable.
1.5 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
1.6 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.
1.7 This international standard was developed in accordance with internationa...
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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: C687 − 18
Standard Practice for
Determination of Thermal Resistance of Loose-Fill Building
1
Insulation
This standard is issued under the fixed designation C687; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope ization established in the Decision on Principles for the
Development of International Standards, Guides and Recom-
1.1 This practice presents a laboratory guide to determine
mendations issued by the World Trade Organization Technical
thethermalresistanceofloose-fillbuildinginsulationsatmean
Barriers to Trade (TBT) Committee.
temperatures between−20 and 55°C (−4 to 131°F).
1.2 This practice applies to a wide variety of loose-fill
2. Referenced Documents
thermalinsulationproductsincludingbutnotlimitedtofibrous
2
2.1 ASTM Standards:
glass, rock/slag wool, or cellulosic fiber materials; granular
C167Test Methods forThickness and Density of Blanket or
types including vermiculite and perlite; pelletized products;
Batt Thermal Insulations
and any other insulation material installed pneumatically or
C168Terminology Relating to Thermal Insulation
poured in place. It does not apply to products that change their
C177Test Method for Steady-State Heat Flux Measure-
character after installation either by chemical reaction or the
ments and Thermal Transmission Properties by Means of
application of binders or adhesives, nor does it consider the
the Guarded-Hot-Plate Apparatus
effects of structures, containments, facings, or air films.
C518Test Method for Steady-State Thermal Transmission
1.3 Since this practice is designed for reproducible product
Properties by Means of the Heat Flow Meter Apparatus
comparison, it measuresthethermalresistanceofaninsulation
C653Guide for Determination of theThermal Resistance of
material which has been preconditioned to a relatively dry
Low-Density Blanket-Type Mineral Fiber Insulation
state. Consideration of changes of thermal performance of a
C739Specification for Cellulosic Fiber Loose-Fill Thermal
hygroscopic insulation by sorption of water is beyond the
Insulation
scope of this practice.
C1045Practice for Calculating Thermal Transmission Prop-
erties Under Steady-State Conditions
1.4 The sample preparation techniques outlined in this
C1114Test Method for Steady-State Thermal Transmission
practicedonotcoverthecharacterizationofloose-fillmaterials
Properties by Means of the Thin-Heater Apparatus
intended for enclosed applications. For those applications, a
C1363Test Method for Thermal Performance of Building
separate sample preparation technique that simulates the in-
Materials and Envelope Assemblies by Means of a Hot
stalled condition will be required. However, even for those
Box Apparatus
applications,someotheraspectsofthispracticeareapplicable.
C1373Practice for Determination of Thermal Resistance of
1.5 The values stated in SI units are to be regarded as the
Attic Insulation Systems Under Simulated Winter Condi-
standard. The values given in parentheses are for information
tions
only.
1.6 This standard does not purport to address all of the
3. Terminology
safety concerns, if any, associated with its use. It is the
3.1 Unless otherwise stated, the terms and definitions found
responsibility of the user of this standard to establish appro-
in Terminology C168 are applicable herein.
priate safety, health, and environmental practices and deter-
mine the applicability of regulatory limitations prior to use.
4. Significance and Use
1.7 This international standard was developed in accor-
4.1 The thermal resistance, R, of an insulation is used to
dance with internationally recognized principles on standard-
describe its thermal performance.
1
This practice is under the jurisdiction of ASTM Committee C16 on Thermal
Insulation and is the direct responsibility of Subcommittee C16.30 on Thermal
2
Measurement. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved Sept. 1, 2018. Published October 2018. Originally contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
approved in 1971. Last previous edition approved in 2017 as C687–17. DOI: Standards volume information, refer to the standard’s Document Summary page on
10.1520/C0687-18. the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
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C687 − 18
4.2 The thermal resis
...
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: C687 − 17 C687 − 18
Standard Practice for
Determination of Thermal Resistance of Loose-Fill Building
1
Insulation
This standard is issued under the fixed designation C687; 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 practice presents a laboratory guide to determine the thermal resistance of loose-fill building insulations at mean
temperatures between −20 and 55°C (−4 to 131°F).
1.2 This practice applies to a wide variety of loose-fill thermal insulation products including but not limited to fibrous glass,
rock/slag wool, or cellulosic fiber materials; granular types including vermiculite and perlite; pelletized products; and any other
insulation material installed pneumatically or poured in place. It does not apply to products that change their character after
installation either by chemical reaction or the application of binders or adhesives, nor does it consider the effects of structures,
containments, facings, or air films.
1.3 Since this practice is designed for reproducible product comparison, it measures the thermal resistance of an insulation
material which has been preconditioned to a relatively dry state. Consideration of changes of thermal performance of a hygroscopic
insulation by sorption of water is beyond the scope of this practice.
1.4 The sample preparation techniques outlined in this practice do not cover the characterization of loose-fill materials intended
for enclosed applications. For those applications, a separate sample preparation technique that simulates the installed condition will
be required. However, even for those applications, some other aspects of this practice are applicable.
1.5 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
1.6 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 safety, health, and healthenvironmental practices and determine the
applicability of regulatory limitations prior to use.
1.7 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
2
2.1 ASTM Standards:
C167 Test Methods for Thickness and Density of Blanket or Batt Thermal Insulations
C168 Terminology Relating to Thermal Insulation
C177 Test Method for Steady-State Heat Flux Measurements and Thermal Transmission Properties by Means of the
Guarded-Hot-Plate Apparatus
C518 Test Method for Steady-State Thermal Transmission Properties by Means of the Heat Flow Meter Apparatus
C653 Guide for Determination of the Thermal Resistance of Low-Density Blanket-Type Mineral Fiber Insulation
C739 Specification for Cellulosic Fiber Loose-Fill Thermal Insulation
C1045 Practice for Calculating Thermal Transmission Properties Under Steady-State Conditions
C1114 Test Method for Steady-State Thermal Transmission Properties by Means of the Thin-Heater Apparatus
C1363 Test Method for Thermal Performance of Building Materials and Envelope Assemblies by Means of a Hot Box Apparatus
C1373 Practice for Determination of Thermal Resistance of Attic Insulation Systems Under Simulated Winter Conditions
1
This practice is under the jurisdiction of ASTM Committee C16 on Thermal Insulation and is the direct responsibility of Subcommittee C16.30 on Thermal Measurement.
Current edition approved March 15, 2017Sept. 1, 2018. Published April 2017October 2018. Originally approved in 1971. Last previous edition approved in 20122017 as
C687 – 12.C687 – 17. DOI: 10.1520/C0687-17.10.1520/C0687-18.
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 ----------------------
C687 − 18
3. Terminology
3.
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