Standard Specification for Rigid, Cellular Polystyrene Thermal Insulation

SCOPE
1.1 This specification covers the types, physical properties, and dimensions of cellular polystyrene intended for use as thermal insulation for temperatures from -65 to +165°F (-53.9 to +73.9°C). This specification does not cover cryogenic applications. Consult the manufacturer for specific recommendations and properties in cryogenic conditions.
1.2 The use of thermal insulation materials covered by this specification may be regulated by building codes that address fire performance. For some end uses, specifiers should also address the effect of moisture. Guidelines regarding these end use considerations are included in Appendix X1.  
1.3 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are provided for information only.  
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 and health practices and determine the applicability of regulatory limitations prior to use.

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ASTM C578-95 - Standard Specification for Rigid, Cellular Polystyrene Thermal Insulation
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NOTICE: This standard has either been superseded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
Designation: C 578 – 95
Standard Specification for
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Rigid, Cellular Polystyrene Thermal Insulation
This standard is issued under the fixed designation C 578; 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 (e) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope C 272 Test Method for Water Absorption of Core Materials
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2
for Structural Sandwich Constructions
1.1 This specification covers the types, physical properties,
C 303 Test Method for Density of Preformed Block-Type
and dimensions of cellular polystyrene intended for use as
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Thermal Insulation
thermal insulation for temperatures from − 65 to + 165°F
C 390 Criteria for Sampling and Acceptance of Preformed
(−53.9 to + 73.9°C). This specification does not cover cryo-
3
Thermal Insulation Lots
genic applications. Consult the manufacturer for specific rec-
C 518 Test Method for Steady-State Heat Flux Measure-
ommendations and properties in cryogenic conditions.
ments and Thermal Transmission Properties by Means of
1.2 The use of thermal insulation materials covered by this
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the Heat Flow Meter Apparatus
specification may be regulated by building codes that address
C 550 Practice for Measuring Trueness and Squareness of
fire performance. For some end uses, specifiers should also
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Rigid Block and Board Thermal Insulation
address the effect of moisture. Guidelines regarding these end
C 870 Practice for Conditioning of Thermal Insulating Ma-
use considerations are included in Appendix X1.
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terials
1.3 The values stated in inch-pound units are to be regarded
C 976 Test Method for Thermal Performance of Building
as the standard. The values given in parentheses are provided
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Assemblies by Means of a Calibrated Hot Box
for information only.
C 1045 Practice for Calculating Thermal Transmission
1.4 This standard does not purport to address all of the
3
Properties from Steady-State Heat Flux Measurements
safety concerns, if any, associated with its use. It is the
C 1058 Practice for Selecting Temperatures for Reporting
responsibility of the user of this standard to establish appro-
3
and Evaluating Thermal Properties of Thermal Insulation
priate safety and health practices and determine the applica-
C 1114 Test Method for Steady-State Thermal Transmission
bility of regulatory limitations prior to use.
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Properties by Means of the Thin-Heater Apparatus
2. Referenced Documents D 1600 Terminology Relating to Abbreviated Terms Relat-
5
ing to Plastics
2.1 ASTM Standards:
D 1621 Test Method for Compressive Properties of Rigid
C 165 Test Method for Measuring Compressive Properties
5
3
Cellular Plastics
of Thermal Insulations
D 1622 Test Method for Apparent Density of Rigid Cellular
C 168 Terminology Relating to Thermal Insulating Materi-
5
3
Plastics
als
D 2126 Test Method for Response of Rigid Cellular Plastics
C 177 Test Method for Steady-State Heat Flux Measure-
5
to Thermal and Humid Aging
ments and Thermal Transmission Properties by Means of
3
D 2863 Test Method for Measuring the Minimum Oxygen
the Guarded-Hot-Plate Apparatus
Concentration to Support Candle-like Combustion of Plas-
C 203 Test Methods for Breaking Load and Flexural Prop-
6
3
tics (Oxygen Index)
erties of Block-Type Thermal Insulation
E 84 Test Method for Surface Burning Characteristics of
C 236 Test Method for Steady-State Thermal Performance
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3
Building Materials
of Building Assemblies by means of a Guarded Hot Box
E 96 Test Methods for Water Vapor Transmission of Mate-
3
rials
1
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This specification is under the jurisdiction of ASTM Committee C-16 on
E 176 Terminology Related to Fire Standards
Thermal Insulation and is the direct responsibility of Subcommittee C 16.22 on
Organic and Nonhomogeneous Inorganic Thermal Insulations.
3. Terminology
Current edition approved Oct. 10, 1995. Published November 1995. Originally
published as C 578 – 65T. Last previous edition C 578 – 92. 3.1 Definitions:
2
This specification is similar to ISO 4898-1984, “Cellular Plastics—
Specification for Rigid Cellular Materials Used in the Thermal Insulation of
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Buildings,” in title only. The scope and technical content are significantly different. Annual Book of ASTM Standards, Vol 15.03.
5
ISO standards are available from ANSI, 11 W. 42nd St., 13th Floor, New York, Annual Book of ASTM Standards, Vol 08.01.
6
NY 10036. Annual Book of ASTM Standards, Vol 08.02.
3 7
Annual Book of ASTM Standards, Vol 04.06. Annual Book of ASTM Standards, Vol 04.07.
Copyright © ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959, United States.
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