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ASTM E2584-14

(Practice)

Standard Practice for Thermal Conductivity of Materials Using a Thermal Capacitance (Slug) Calorimeter

Standard Practice for Thermal Conductivity of Materials Using a Thermal Capacitance (Slug) Calorimeter

SIGNIFICANCE AND USE
5.1 This practice is useful for testing materials in general, including composites and layered types.  
5.2 The practice is especially useful for materials which undergo significant reactions or local dimensional changes, or both, during exposure to elevated temperatures and thus are difficult to evaluate using existing standard test methods such as Test Method C1113.  
5.3 Performing the test over multiple heating/cooling cycles allows an assessment of the influence of reactions, phase changes, and mass transfer of reactions gases (for example, steam) on the thermal performance.Note 3—This method has been found to be especially applicable to testing fire resistive materials.
SCOPE
1.1 This practice describes a technique for the determination of the apparent thermal conductivity, λa, of materials. It is for solid materials with apparent thermal conductivities in the approximate range 0.02 a Note 1—While the practice should also be applicable to determining the thermal conductivity of non-reactive materials, it has been found specifically useful in testing fire resistive materials that are both reactive and undergo significant dimensional changes during a high temperature exposure.  
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
1.3 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.

General Information

Status
Historical
Publication Date
14-Feb-2014
ICS
17.200.10 - Heat. Calorimetry
Technical Committee
E37 - Thermal Measurements
Drafting Committee
E37.05 - Thermophysical Properties
Current Stage
Ref Project

Relations

Replaces
ASTM E2584-10 - Standard Practice for Thermal Conductivity of Materials Using a Thermal Capacitance (Slug) Calorimeter
Effective Date
15-Feb-2014
Replaced By
ASTM E2584-20 - Standard Practice for Thermal Conductivity of Materials Using a Thermal Capacitance (Slug) Calorimeter
Effective Date
01-May-2020

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ASTM E2584-14 - Standard Practice for Thermal Conductivity of Materials Using a Thermal Capacitance (Slug) CalorimeterASTM E2584-14 - Standard Practice for Thermal Conductivity of Materials Using a Thermal Capacitance (Slug) Calorimeter
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Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: E2584 − 14
Standard Practice for
Thermal Conductivity of Materials Using a Thermal
1
Capacitance (Slug) Calorimeter
This standard is issued under the fixed designation E2584; 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 Comparison Techniques
E230Specification and Temperature-Electromotive Force
1.1 Thispracticedescribesatechniqueforthedetermination
(EMF) Tables for Standardized Thermocouples
of the apparent thermal conductivity, λ , of materials. It is for
a
E457Test Method for Measuring Heat-Transfer Rate Using
solid materials with apparent thermal conductivities in the
a Thermal Capacitance (Slug) Calorimeter
approximate range 0.02<λ <2 W/(m·K) over the approxi-
a
E691Practice for Conducting an Interlaboratory Study to
mate temperature range between 300K and 1100K.
Determine the Precision of a Test Method
NOTE 1—While the practice should also be applicable to determining
the thermal conductivity of non-reactive materials, it has been found
specifically useful in testing fire resistive materials that are both reactive
3. Terminology
and undergo significant dimensional changes during a high temperature
3.1 Definitions:
exposure.
3.1.1 thermal conductivity, λ—the time rate of heat flow,
1.2 The values stated in SI units are to be regarded as
understeadyconditions,throughunitarea,perunittemperature
standard. No other units of measurement are included in this
gradient in the direction perpendicular to the area.
standard.
3.1.2 apparent thermal conductivity, λ —when other modes
a
1.3 This standard does not purport to address all of the
of heat transfer (and mass transfer) through a material are
safety concerns, if any, associated with its use. It is the
present in addition to thermal conduction, the results of the
responsibility of the user of this standard to establish appro-
measurements performed according to this practice will repre-
priate safety and health practices and determine the applica-
sent the apparent or effective thermal conductivity for the
bility of regulatory limitations prior to use.
material tested.
2. Referenced Documents
3.2 Symbols:
2
2.1 ASTM Standards: 2
A = specimen area normal to heat flux direction, m
C1113Test Method for Thermal Conductivity of Refracto-
C = specific heat capacity, J/(kg·K)
p
ries by Hot Wire (Platinum Resistance Thermometer
F = heating or cooling rate, (K/s)
Technique)
L = thickness of a specimen (slab) in heat transfer
D2214Test Method for Estimating the Thermal Conductiv-
direction,m
ityofLeatherwiththeCenco-FitchApparatus(Withdrawn
M = mass, kg
3
2008)
Q = heat flow, W
E177Practice for Use of the Terms Precision and Bias in T = absolute temperature, K
SSS
T = mean temperature of the stainless steel slug, K
ASTM Test Methods
inner
SPEC
T = mean temperature of outer (exposed) specimen
E220Test Method for Calibration of Thermocouples By
outer
surfaces, K
SPEC
T = mean temperature of specimen, K
mean
1 ∆T = temperature difference across the specimen,
This practice is under the jurisdiction of ASTM Committee E37 on Thermal
SPEC SSS
Measurements and is the direct responsibility of Subcommittee E37.05 on Thermo- given by (T – T ), K
outer inner
physical Properties.
λ = thermal conductivity, W/(m·K)
Current edition approved Feb. 15, 2014. Published March 2014. Originally
λ = apparent thermal conductivity, W/(m·K)
a
approved in 2007. Last previous edition approved in 2010 as E2584–10. DOI:
SPEC 3
ρ = bulk density of specimen being tested, kg/m
10.1520/E2584-14.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
3.3 Subscripts/Superscripts:
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
SPEC = material specimen being evaluated
the ASTM website.
3 SSS = stainless steel slug (thermal capacitance transducer)
The last approved version of this historical standard is referenced on
www.astm.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
E2584 − 14
4. Summary of Practice material, of known mass and known and nominally identical
thickness, between which is sandwiched a stainless steel
4.1 Principle of Operation—Inprinciple,aslugofthermally
thermal capacitance transducer (slug) of known mass. The
conductive metal, capable of withstanding elevated
entire sandwich is placed between two (high temperature)
temperatures, is surroundedwithanothermaterialofauniform
metal retaining plates, and the bolts hold
...

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: E2584 − 10 E2584 − 14
Standard Practice for
Thermal Conductivity of Materials Using a Thermal
1
Capacitance (Slug) Calorimeter
This standard is issued under the fixed designation E2584; 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 describes a technique for the determination of the apparent thermal conductivity, λ , of materials. It is for solid
a
materials with apparent thermal conductivities in the approximate range 0.02 < λ < 2 W/(m·K) over the approximate temperature
a
range between 300 K and 1100 K.
NOTE 1—While the practice should also be applicable to determining the thermal conductivity of non-reactive materials, it has been found specifically
useful in testing fire resistive materials that are both reactive and undergo significant dimensional changes during a high temperature exposure.
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.3 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. Referenced Documents
2
2.1 ASTM Standards:
C1113 Test Method for Thermal Conductivity of Refractories by Hot Wire (Platinum Resistance Thermometer Technique)
3
D2214 Test Method for Estimating the Thermal Conductivity of Leather with the Cenco-Fitch Apparatus (Withdrawn 2008)
E177 Practice for Use of the Terms Precision and Bias in ASTM Test Methods
E220 Test Method for Calibration of Thermocouples By Comparison Techniques
E230 Specification and Temperature-Electromotive Force (EMF) Tables for Standardized Thermocouples
E457 Test Method for Measuring Heat-Transfer Rate Using a Thermal Capacitance (Slug) Calorimeter
E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
3. Terminology
3.1 Definitions:
3.1.1 thermal conductivity, λ—the time rate of heat flow, under steady conditions, through unit area, per unit temperature
gradient in the direction perpendicular to the area.
3.1.2 apparent thermal conductivity, λ —when other modes of heat transfer (and mass transfer) through a material are present
a
in addition to thermal conduction, the results of the measurements performed according to this practice will represent the apparent
or effective thermal conductivity for the material tested.
3.2 Symbols:
2
A = specimen area normal to heat flux direction, m
C = specific heat capacity, J/(kg·K)
p
F = heating or cooling rate, (K/s)
L = thickness of a specimen (slab) in heat transfer direction, m
M = mass, kg
Q = heat flow, W
1
This practice is under the jurisdiction of ASTM Committee E37 on Thermal Measurements and is the direct responsibility of Subcommittee E37.05 on Thermophysical
Properties.
Current edition approved March 1, 2010Feb. 15, 2014. Published May 2010March 2014. Originally approved in 2007. Last previous edition approved in 20072010 as
E2584 – 07.E2584 – 10. DOI: 10.1520/E2584-10.10.1520/E2584-14.
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.
3
The last approved version of this historical standard is referenced on www.astm.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
E2584 − 14
T = absolute temperature, K
SSS
T = mean temperature of the stainless steel slug, K
inner
SPEC
T = mean temperature of outer (exposed) specimen surfaces, K
outer
SPEC
T = mean temperature of specimen, K
mean
SPEC SSS
ΔT = temperature difference across the specimen, given by (T – T ), K
outer inner
λ = thermal conductivity, W/(m·K)
λ = apparent thermal conductivity, W/(m·K)
a
SPEC 3
ρ = bulk density of specimen being tested, kg/m
3.3 Subscripts/Superscripts:
SPEC = material specimen being evaluated
SSS = stainless steel slug (thermal capacitance transducer)
4. Summary of Practice
4.1 Principle of Operation—In principle, a slug of thermally condu
...

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